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genshingorlsrevengeance · 2 months

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Persona 3/Fire Emblem Three Houses Crossover Megapost

In celebration of Persona 3 Reload coming out and reigniting my love for S.E.E.S, and wanting to write Three Houses once again, I figured I could do both at once. If you wanna see more, feel free to request interactions/scenarios, I'd be happy to! Enjoy the shenanigans of the Blue Lions and S.E.E.S!

Word Count: 3.2k Content: Blue Lions meeting the P3 Protagonists, Sylvain talking to Aigis, Dimitri talking to Minato and Minako, Byleth and Sothis meeting Elizabeth, and Blue Lions reacting to Personas

Blue Lions meeting the P3 Protagonists ===============================

Byleth walked through the crowded hallways of Garreg Mach Monastery, accompanied by the two mysterious visitors that appeared during the bandit attack.

One was a blue haired boy, both hands in his pocket as he emotionlessly glanced around, ignoring the gaze of the students.

The one beside him was a brown haired girl with a ponytail, who in contrast seemed far more enthusiastic about meeting everyone, waving hello to some of the students.

(Minako) "Come on, you can at least smile a little! We're representing Gekkoukan after all."

Minato rolled his eyes and coldly replied.

(Minato) "Junpei is already ruining our reputation for us back at the entrance. No need for me to do anything."

Minako sighed and looked at her new teacher with a wry smile.

(Minako) "Sorry, this is probably not a good introduction, is it?"

Byleth shrugged, turning to face the both of them. His expression was not too dissimilar from Minato's.

(Byleth) "Honestly, I don't really know how to approach this better than you all. I'm a mercenary."

Minako put a finger to her chin as her brows furrowed.

(Minako) "Hm...Think we should have gotten Mitsuru-senpai to take care of the talking for us?"

(Minato) "Probably."

Minako shrugged shortly after thinking about the situation, her smile quickly coming back.

(Minako) "Well, too late for regrets now!...Actually, where are we going?"

(Byleth) "We're heading towards the...Blue Lions classroom I believe. Dimitri said he wanted to thank you two personally, I have to go to meet with some other people, but I'll check back with you all later."

After departing with Byleth, the siblings entered through a large double door and saw Dimitri surrounded by seven unfamiliar faces.

Dimitri gave them a nod of acknowledgement as the group scattered to make room.

(Dimitri) "I take it your group is getting accustomed to Garreg Mach?"

Minako smiled in response, first looking at everyone's expression and taking note of them before giving an answer. Minato meanwhile kept his stoic look and let his sister do the speaking.

(Minako) "Psh, not in the slightest! We've never seen anything like this back in our world."

An orange haired girl spoke up.

(Annette) "Another world? Wow, so the rumors weren't kidding! That'd certainly explain the weird looking clothes."

A larger dark skinned man standing next to Dimitri followed up her comment with a respectful bow.

(Dedue) "Where your group comes from is irrelevant, we all owe you a debt of gratitude for saving his highness."

Minato nodded back.

(Minato) "Of course. And thanks for giving our friends a place to stay."

(Sylvain) "Jeez, that guy's a little intense. Doesn't he remind you of a certain someone?"

Sylvain elbowed Felix, who gave an annoyed glare back.

(Felix) "Shut up already. They can hear you, you know."

(Minako) "Eh, don't worry about my baby brother here! He's usually like this."

(Mercedes) "Oh, you two are siblings? I wouldn't have guessed!"

Minato replied in an emotionless tone, though it did not carry any hint of malice in it.

(Minato) "We get that a lot."

(Ingrid) "If there's anything you guys need help with, feel free to reach out! My name's Ingrid, by the way."

Everyone took a moment to introduce themselves.

(Ashe) "I really look forward to getting to you know you all!"

Minako gave him a warm smile back.

(Minako) "Me too! And though he may not look like it, this one is too!"

(Minato) "Hm."

The siblings departed the Blue Lions to find their own group, leaving them to converse amongst themselves.

(Dimitri) "They appear to be...a unique bunch."

(Annette) "Minako seems really nice! Though, I couldn't really get a read on her brother."

(Ingrid) "It probably won't take long for Sylvain to piss him off."

(Sylvain) "Hey, why are you making it sound like he will get angry at me? We could be best buds!"

(Felix) "Is that right? Well, I'm not holding my breath."

(Mercedes) "This is going to be a fun year with them around, that's for sure!"

(Ashe) "Probably super chaotic too. I wonder what the rest of their group is like."

(Dedue) "If they are anything like us, Ashe, I'm sure it won't take them long to adjust."

=============================== Sylvain talking to Aigis ===============================

Aigis appeared to be standing still near the greenhouse, quietly examining the plants.

She had been that way for nearly an hour before she was approached by Sylvain.

(Sylvain) "Hey there, Aigis! Whatcha doin' here?"

Her head stiffly turned to face Sylvain and gave a single nod, her face remaining unchanged.

(Aigis) "I am observing the plants in your world. They appear to be very similar to our own, but differ in properties and how they are utilized."

Sylvain tilted his head curiously, turning to look at the plants with a look of genuine curiousity.

(Sylvain) "Huh. I never really thought about that kind of thing before, but it must be crazy for you to see plants be made into healing potions."

(Aigis) "Negative. Plants were used by humans for medicinal purposes, ranging back thousands of years. But the potency of your flora appear to be far stronger than the ones found on Earth."

Her answer confused him, making him shake his head and remember why he was there to begin with.

(Sylvain) "...Okaaay, kinda lost me there. But, if you're wanting to see other things that are different, how about going out into town with me?"

(Aigis) "Are you asking me out on what they refer to as a 'date'?"

Sylvain chuckled at her question.

(Sylvain) "If you wanna call it that, then sure-!"

(Aigis) "The answer is no."

(Sylvain) "Wha- why not?!"

(Aigis) "Minato-san has specifically warned me to not go on any dates. Especially with you, Sylvain."

Though her tone was completely static, he could gleam a bit of malice in the response.

(Sylvain) "Okay listen, whatever he told you about me is not true!"

(Aigis) "He has not told me anything."

(Sylvain) "Then who did?"

Aigis paused for a moment before resuming.

(Aigis) "...The list is as follows: Ingrid, Felix, Dimitri, Dorothea, Yukari, Junpei, Mitsuru, Minako, Byleth-"

(Sylvain) "Alright alright, I got the message across! But surely you must be curious about going outside the Monastery for at least a few hours? I can be a tour guide at least!"

Aigis paused once again.

(Aigis) "...I comprehend. If this is not a date, then I do not have a problem with this request."

(Sylvain) "G-Great! See you in half an hour?"

(Aigis) "Affirmative. I also have an order I am obliged to follow, given by Minato and Minako in regards to you."

Sylvain wasn't even sure he wanted to know what it was.

(Sylvain) "And that is...?"

(Aigis) "I am authorized to use force if pressured onto a date."

(Sylvain) "F-Force?! Now hang on just a-"

(Aigis) "Commencing preparations. Please meet me by the entrance in half an hour."

Aigis walked away, leaving Sylvain standing by himself with an open jaw.

(Sylvain) "What the heck is with her?!"

C Support Reached!

=============================== Dimitri talking to Minato and Minako ===============================

Dimitri walked into the dormitories where the S.E.E.S members had taken up residence during their stay at Garreg Mach.

At the moment it was just Minato sitting on the couch with a strange device on his ears, and Minako reading a book from the library.

Minako looked up from her book and waved to Dimitri.

(Minako) "Hey, Dimitri! Surprised to see you here!"

Minato noticed Minako moving and grabbed the right side of his device and lifted it off. Dimitri could hear words coming out of it.

"Hey, hey, hey" Fueling the fire with the burning desire-

(Minato) "Hey."

(Dimitri) "Are those words coming out of that earmuff?"

(Minako) "Oh, that's right! I forget you guys don't know what headphones are!"

Minato raised an eyebrow at his sister.

(Minato) "We've been in a medieval world this entire time, and you forgot that it doesn't have technology like ours?"

(Minako) "Hush you! Anyways, that's a small...thingy that can play music, in short. Now whatcha need?"

Dimitri cleared his throat after focusing away from Minato's headphones.

(Dimitri) "Truthfully, I was curious to see what you all got up to in your free time. You seemed to have adjusted to the school life well, but I was wanting to make sure you could do so in your free time."

Minato shrugged nonchalantly.

(Minato) "We're managing, surprisingly."

(Minako) "Yeah, who knew that hanging out with a buncha people our age who can cast fireballs would seem so normal!"

(Dimitri) "That's another thing I wanted to ask. Your group seems well versed in combat already. What exactly is your home like?"

(Minako) "Weeeeeelll-"

Her voice trailed off, waving one hand dismissively.

(Minako) "Just self defense is all! We have to deal with vagrants in our world too."

(Dimitri) "Is...that right?"

(Minato) "You're a worse liar than Ashe-"

Minako immediately pointed at her little brother.

(Minako) "YOU! YOUR FACE, SHUT!"

That made Dimitri laugh.

(Dimitri) "I apologize, I did not mean to pry. I am just impressed more than anything."

(Minato) "Relatedly...Today's the first full moon here at Garreg Mach, right?"

Dimitri noticed how both their expressions suddenly became serious.

(Dimitri) "Y-Yes it is. It also means it's nearly been a month since you all first came here. Is the moon significant in your world?"

Minato sat up from the couch and put his hands into his pocket.

(Minato) "Very."

Minato began walking away from the group before giving Dimitri one last look.

(Minato) "You might get your answer sooner than you think."

As he exited the dorm, he turned to Minako.

(Dimitri) "Did I say something wrong?"

(Minako) "Oh, don't mind him. He's usually that much of a jackass...But he's not wrong...Say, how about we spar near midnight, Dimitri?"

=============================== Byleth and Sothis meeting Elizabeth ===============================

Byleth woke up in his bed, rubbing his eye before noticing Sothis was trying to shake him awake.

(Sothis) "Finally! Do you know how long I've been trying to- Know what? Forget it, that doesn't matter! There's something here!"

(Byleth) "Something here? What are you-"

He paused when he noticed there was a blue glow coming from outside the door to his room.

Byleth immediately grabbed his sword and nearly kicked down the door with Sothis floating behind him.

Only to see another door in front of him, glowing blue and with an energy he could not place the feeling of.

(Byleth) "That wasn't here yesterday."

(Sothis) "Your keen senses of observation never ceases to amaze me, child."

Byleth made no comment as he slowly circled around the door. There was nothing it led to, even on the other side.

Byleth saw a group of students walk past the door, giving him an odd look but saying hello, not even acknowledging the door's presence.

(Sothis) "The door feels...strangely familiar."

(Byleth) "Should we go inside it?"

The two exchanged a glance before slowly opening the door and entering it.

...

Inside sat Sothis's throne, now bathed in a ghastly blue aura, a table sitting in front of it, but most notable of all was the fact a woman was standing inside, alone.

(Sothis) "M-My throne!"

The woman turned towards her visitors and politely bowed.

She had blonde hair and a strange blue attire, adorned with a small hat that rested on her head.

While everything about her seemed to be human, the way she portrayed herself and everything surrounding her was anything but.

(???) "Welcome, to the Velvet Room."

(Sothis) "Velvet Room? This is MY room!"

(???) "...Ah, so it is! I was wondering why it was so empty. I hope you do not mind that I have taken up residence here, you have my sincerest apologies!"

Byleth reached for his sword, but suddenly realized it was gone. Deciding to question instead of fight, he simply asked:

(Byleth) "Who are you?"

The woman smiled at the question and bowed once again.

(Elizabeth) "My name is Elizabeth, it is a pleasure to be your acquaintance! I am the attendee to the two under your care."

It took a moment for them to realize who she was talking about.

(Byleth) "Minato and Minako?"

Suddenly, things made sense. Everytime Sothis appeared to talk to him, they appeared to be aware of her, despite the fact no one else in their group could.

They already weren't normal, but this further solidified that something else was at play here.

(Elizabeth) "The Arisato siblings, yes! Well, truth be told my brother is supposed to be here, but alas he is nowhere to be found. But I am more than enough to serve their purpose."

(Sothis) "What do you provide that requires taking over my home?"

(Byleth) "That's in my head, no less..."

(Elizabeth) "I provide them with the fusing of Personas for their journey. Nothing more, and nothing less! For we can only assist, never directly intervene.

Elizabeth put a finger to her chin, thinking about what to say next.

(Elizabeth) "As for the occupation, it seemed this was the only place I could manifest myself that could easily reach you as well. Your fates are all intertwined, after all!"

Sothis sighed and crossed her arms, floating over to Elizabeth.

(Sothis) "You couldn't ask?"

(Elizabeth) "I tried, multiple times. But I believe you were asleep everytime I attempted, and eventually found this empty room, save the throne."

(Byleth) "...That one is more of your fault than anything-"

(Sothis) "Be quiet."

(Elizabeth) "I look forward to getting to know you two as well."

(Byleth) "Well, I'm Byleth, and that's Sothis. I guess we'll get to know you too."

Suddenly, the door opened behind them.

(Minako) "I guess it makes sense for the Velvet room to- OHMYGOD!-"

Minako leapt back in fear while Minato only flinched.

(Minako) "WHAT THE HECK ARE YOU DOING HERE?!"

(Minato) "It's that floating green thing again too-"

(Sothis) "EXCUSE ME?!"

=============================== Blue Lions Reacting to Personas ===============================

(Dimitri) "EVERYONE, TO THE CATHEDRAL!"

The Blue Lions and Byleth dashed across the bridge leading to Garreg Mach's cathedral, bathed in the ominous light of a full moon.

The previously calm black skies had darkened to a sickly pale green glow while being chased by monsters.

While they could kill a few of them, there were too many of them to deal with. And under the moonlight they appeared to be getting stronger.

Ashe, Mercedes, and Annette attempted to hold back the monsters with spells and arrows, but if they stood their ground they would have been overwhelmed.

Instead, Dimitri, Dedue, Felix, and Byleth held the ones in pursuit off while Ingrid and Sylvain tried to find a way inside.

(Sylvain) "Damn it, it's stuck!"

(Ingrid) "Then we gotta kick the door down!-"

Before she could attempt to do so, the ground they were standing on quickly darkened, making everyone look up.

A massive blob-like monster slithered down the walls, with too many arms to count protruding out of it, all wielding swords.

(Annette) "B-BEHIND US!"

Everyone turned around and gained distance as the monster crashed onto the concrete, sending bricks flying into the air at violent speeds.

The Blue Lions had been pincered by these creatures.

(Mercedes) "I-Is this the work of the same people that attacked the burial site?!"

(Dedue) "I am unsure if even they are capable of doing this! The people I had been speaking to suddenly turned into coffins!"

(Byleth) "Here's the plan, when I count to three, we break through these monsters coming from the bridge and make a run-"

Before he could finish his sentence, they all heard someone speaking to them.

(Fuuka's Voice) "Thank goodness, you all are still okay! Can you hear me?!"

(Felix) "Is that...Fuuka?!"

(Ashe) "Is she in danger too?! How can we hear-"

(Fuuka's Voice) "Everyone needs to get back to a safe distance from the Shadows on the bridge, right now!"

Without warning, the shadows suddenly burst into a black mist from what appeared to be an ice spell.

Mitsuru, Akihiko, Ken, Shinji, Aigis, and even their dog, Koromaru, were standing from the entrance, all wielding weapons.

(Mitsuru) "Everyone, escape to us, we'll keep you safe!"

Before anyone could react, Minato, Minako, Junpei, and Yukari ran in front of them, all wielding strange devices in their hands with red armbands.

(Dimitri) "Wait, that thing is too dangerous for you to-!"

Minako turned to them with a smirk, giving them a thumbs up and cutting Dimitri off.

(Minako) "Don't worry. Bandits and cultists are your guys things, Shadows are ours!"

(Junpei) "Hell yeah, time for us to finally shine!"

(Yukari) "Please focus, you two!"

(Minato) "You wanted to see where we got our combat skills from, right Dimitri? Here's your answer."

Everyone watched with confusion as they pointed strange devices to all their heads.

(Minato/Minako, Junpei, and Yukari)

"ORPHEUS!" "HERMES!" "IO!"

The monster seemed to recoil in surprise once the four pulled the trigger, summoning monsters of their own, igniting the area around them in a bright blue flame.

They rushed the monster with their weapons raised, joined by their ghastly summons and seemed to attack with near perfect synchronization.

Looking back at the bridge, the rest of them appeared to be doing the same and wiping out the smaller monsters with ease.

(Shinji) "The hell are you doing standing still, get a damn move on!"

(Byleth) "You heard them, MOVE IT!"

The Blue Lions did as commanded, running from the fight, though most of them couldn't tear their eyes off from what they were seeing.

(Sylvain) "Holy hell, they're tearing those things apart! What even are they?!"

(Felix) "Tch, no wonder they always seemed like they were holding back, it's because they were!"

(Annette) "Are those made from magic?!"

(Mercedes) "They look more like ghosts to me!"

(Ashe) "I-I hope they're not, but I'm glad they're on our side!"

(Ingrid) "Think they can teach us how to do that too?"

(Dedue) "I do not think we should be asking questions like these right now!"

(Dimitri) "Agreed, we need to find somewhere safe!"

(Byleth) What kind of place is their world where fighting monsters like these is normal for them?!

...

(Elizabeth) "Hah, I knew they'd have no problem."

Sothis watched the ongoing fight with her jaw opened wide, not believing what was happening.

...

Once the Full Moon Shadow was dispatched of, the members of S.E.E.S moved to find the Blue Lions.

(Fuuka) "Good work everyone, the rest of the shadows are disappearing en masse."

(Mitsuru) "Operation complete, though I cannot say I feel particularly great after this victory."

(Ken) "I can't believe the Dark Hour followed us here..."

(Koromaru) "Woof!"

(Aigis) "Koromaru agrees."

(Minato) "Makes sense something would be up if we could still use our evokers here, even outside the Dark Hour."

(Yukari) "I can't help but feel responsible. We brought the Dark Hour to a place that didn't even have to deal with it..."

(Junpei) "Saving one world was already great, but maybe we'll get the credit for two?"

(Shinji) "Tch, what a pain in the ass."

(Akihiko) "Suppose we just need to keep in mind of the moon here too, on top of all the other things to worry about."

(Minako) "Feels good finally getting to let loose without worrying about witnes-...Oh crap, where did the Blue Lions go! They didn't exactly look like they'd forget about this anytime soon!"

Fuuka quickly found where they were hiding, and S.E.E.S moved to find and explain everything they could.

Or at least, attempt to explain.

Mitsuru and Minato had to do most of the explaining.

#crossover #fe3h crossover #persona 3 crossover #persona 3 au #minato arisato #minako arisato #byleth eisner #dimitri alexandre blaiddyd #blue lions #s.e.e.s

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genshingorlsrevengeance · 1 year

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House Isekai: "A day in the life of..."

House Isekai Masterlist Here

Byleth, a former merc, was meant to teach one of the three houses at Garreg Mach's officer academy. Instead, his fate was changed when a group emerged from a portal that tore apart reality. With more and more offworlders appearing, Byleth and his new group form a brand new fourth house: House Isekai. Almost a year later, Byleth goes about his usual routine on his day off, enjoying the company of his insane class ranging from undead, supernaturally and technologically powered students, to the most dangerous morons imaginable, and much more...

[Very long under the cut!]

===

[Life At Garreg Mach Monastery - FE3H Soundtrack]

Byleth sat alone as he quietly put quill and ink to a blank paper, scribbling away before he left his room for the day.

jeralt

tis es byleth im yrting tis leter to lte yuo-

Byleth suddenly stopped, the air coming out of nose displaying his frustration.

He still had trouble actually putting words to paper. Byleth silently wished in his head that Jeralt had spent some amount of time teaching him how to read and write.

How could he hope to write a letter if he can't even read?

(Sothis) "It's not like he ever had time to teach you."

Sothis suddenly materialized by his side, making him glance over to her.

He had forgot in this brief moment that Sothis could hear him, regardless if he thought it in his head.

(Byleth) "No, but there's gotta be some point where a mercenary has to write, isn't there?"

(Sothis) "I'm afraid I cannot answer that." sigh "Look child, if you're struggling that much, why not ask for help?"

Byleth's facial expression didn't change, but by the slight tone shift, Sothis could tell he was annoyed.

(Byleth) "And what if a student hears me asking for help with a letter? How do you think they'll react to their own professor not being able to write?"

Sothis scoffed.

(Sothis) "Are you kidding? Has teaching your lunatics these past few months taught you nothing? They can't write either! Well, not in Fodlan's language, anyway."

(Byleth) "Hm."

Byleth laid back in his chair as he put the quill onto the table.

DING, DING DING DING, DONG!

(Byleth) "Is it twelve already?"

(Sothis) "So it would seem. Come now, let's exit this stuffy room. I need some fresh air."

Byleth nodded in agreement as he slid his chair properly into the desk and exited the door.

He saw crowds of students moving back and forth throughout the dorms, some returning while some left to the various faculties of Garreg Mach.

(Byleth) "Might as well see what everyone is doing."

Students (House Isekai) Minato and Minako Arisato, Yu Narukami, Akira Kurusu (Black Eagles) Linhardt von Hevring, Caspar von Bergliez

Byleth walked by the dorm's courtyard before noticing Linhardt and Caspar speaking to each other.

...No, more like whispering. At least Linhardt was.

(Linhardt) "See, they're doing it again."

(Caspar) "...Doing what? They're just standing there."

(Linhardt) "Exactly, it's so strange..."

(Caspar) "I mean kinda, but it's a little more strange you're staring at them, yeah?"

(Byleth) "What are you two talking about?"

(Caspar) "Oh, heya professor. Linhardt's getting all weird cause he's staring at your students."

Byleth looked to Linhardt who rose a hand to defend himself.

(Linhardt) "Apologies, he's making it sound FAR worse than what I'm actually doing."

(Byleth) "...And that is?"

(Linhardt) "It's just something I've noticed is all. Why is it that those four in particular stare at nothing?"

Byleth looked up and saw who he was speaking about. Which was no one.

There only stood a blue door.

(Sothis) "Oh, that'd explain why I felt a presence near me. Should we go in and say hi?"

(Byleth) Might as well. "Here, I'll go talk with them."

Byleth and Sothis walked over to the blue door.

(Linhardt) "And then...there!"

(Caspar) "...So what? He's over with them now."

(Linhardt) "Have you seriously not noticed he said he'd "talk" to them, and now all of a sudden he's standing completely still with them?"

(Caspar) "...Oh...Yeah, that's. Okay yeah, that's pretty weird."

(Linhardt) "Just what on earth are they doing? They've been doing this for months now!"

...

[Aria of the Soul - Persona Series]

Byleth opened the door to the Velvet Room and saw his students mingling with one another.

Sothis couldn't help but sigh what had become of her private room. Originally, this was a place only she and Byleth could go into, and it was just a single throne in a black void.

Now it was this massive blue-tinted room and she had no idea how it got here, or how these kids could enter it too.

Not to mention their "attendants" took up residence as well, making it impossible for Sothis to get peace and quiet shuteye.

Though she had gotten to know them well throughout the year, partly against her own will.

(Akira) "Oh, afternoon, Byleth-sensei."

(Minako) "Heya!"

(Minato) "Hey."

(Yu) "Did you need something from us?"

(Byleth) "Not particularly. Just dropped by to say hello after noticing you were here."

(Sothis) "Well, not so much we noticed as Linhardt and Caspar did. They see the five of you just staring at a wall right now."

(Yu) "Is that what it looks like to others?"

(Minako) "Hah! Oh man, we must look like nutjobs!"

(Minato) "As if people didn't already think that about us."

(Akira) "We were just fusing some Personas together for the upcoming field assignment. Better to be prepared."

Byleth pretended to understand by nodding.

After all this time he still had no idea how a Persona worked, or what it even was. But all he knew was that they kept the students safe, and thats all he could ask for.

(Byleth) "Agreed. As you were."

They all waved goodbye to him as he left the Velvet Room.

A few seconds after the door closed, Minako suddenly shouted.

(Minako) "AW CRAP! I NEEDED TO ASK HIM SOMETHING!"

(Minato) "Gah, my ears...!"

(Yu) "M-Minako?"

Minako rushed out after him, the other Persona Users following behind.

[Life At Garreg Mach Monastery - FE3H Soundtrack]

(Caspar) "Do you think they even breathe?"

Before Linhardt could respond, suddenly Byleth moved away from the four and began walking back.

(Byleth) "They're alright. They'll be back in a moment."

(Linhardt) "...What does that even mean-"

Minako suddenly sprung to life in Linhardt's perspective, alongside the others.

(Minako) "BYLETH-SENSEI!"

Linhardt and Caspar jumped while Byleth calmly turned around.

The others walked up with her as she ran up to him.

(Minako) "Is the written part of our practical exam tomorrow?!"

(Byleth) "Weren't you paying attention to what Megu-nee was saying yesterday?''

(Minato) "Clearly not."

(Byleth) "Yes. You have been studying, haven't you?"

(Minako) "I will now! Could I ask for some help with it? Pleaaase?"

(Byleth) "I know I'm laid back when it comes to your written portions, but I'm not just going to give you the answers." Not like I can read it anyway.

Sothis snickered, but the Persona Users to ignore her, unsure of why she did to begin with.

(Yu) "Hah, well I think it's best if we go ahead and begin studying, right Minako?"

(Minako) "Crap crap crap crap!-"

Minako ran off to her room, making Minato sigh while Akira and Yu shrug.

(Byleth) "Well, I'll see you tomorrow. Make sure you're prepared."

He walked off towards the training halls.

(Byleth) "And speaking of the practical exam..."

Linhardt and Caspar watched everyone split off.

(Caspar) "What goes on in that class?"

(Linhardt) "I'm not sure either..."

Staff

(House Isekai) Cocytus Students Rean Schwarzer, Laura S. Arseid (Blue Lions) Ingrid Brandl Galatea, Felix Hugo Fraldarius

[The Glint of Cold Steel - Trails of Cold Steel OST]

Byleth opened the doors to the training hall and immediately saw four students in the center training.

Two of them were in distinctly red coats, meaning they were-

(Cocytus) "CLASS VII. REAN AND LAURA. THEY WERE WANTING SPARRING PARTNERS FOR THE PRACTICAL EXAM. INGRID AND FELIX WERE HAPPY TO OBLIGE."

Byleth heard his co-worker's icy breaths come from his mandibles as they clicked. One arm held his Halberd while the other three were crossed, watching intently on their duel. Byleth said nothing else so that he wouldn't interrupt his concentration.

Although many of House Isekai's main staff could fight exceptionally well, none were better at training than Cocytus, making him the chief Combat Instructor.

Cocytus remained perfectly still as he watched the students clash their blades against one another, icy breaths coming out as the air around him felt freezing.

Sothis couldn't help but shiver, and while Byleth was used to it after so long, he still couldn't help but do the same. Turning his eyes back on the duel, Rean and Laura were at a standstill with Ingrid and Felix. Rean's tachi was matching Felix's sword blow for blow, while Ingrid struggled to land a hit against Laura who swung her greatsword startlingly fast.

Byleth began to watch with interest as well. He had always been intrigued by Class VII's style of fighting. Their weapons and tactics were actually very similar to Fodlan's, though there was one thing that made them stand apart.

Rean and Laura leapt back together to catch their breath while Felix and Ingrid did the same. The Class VII students nodded at each other and held out small devices in their hands.

(Rean & Laura) "ARCUS, activate!"

The two suddenly began glowing a light blue as they remained still.

Felix rushed in without saying anything to Ingrid, leaving her a moment to catch up. In an instant, Rean and Laura attacked in perfect sync, knocking Felix to the ground and their weapons inches away from Ingrid, who slowly raised her hands up.

Cocytus nodded and slammed the pole end of his Halberd onto the concrete.

(Cocytus) "THE MATCH HAS BEEN DECIDED. REAN AND LAURA ARE THE VICTORS."

[Life At Garreg Mach Monastery - FE3H Soundtrack]

Rean offered a hand to Felix, who batted it away and stood up on his own.

Rean looked a little hurt, but said nothing as he stood beside Laura in front of Cocytus, joined by Ingrid and Felix as well.

Byleth hung back a little in order to let Cocytus do his job.

(Cocytus) "FRALDARIUS, GALATEA. ARE YOU AWARE OF THE REASON YOU LOST?"

(Felix) "Yeah, because of their little device-"

(Ingrid) "No. It was because we were not coordinated, sir."

(Cocytus) "CORRECT. ON THE BATTLEFIELD, THERE ARE TWO THINGS ONE RELIES ON TO SUCCEED. YOUR OWN SKILL, AND YOUR COMRADES."

Although Cocytus's tone wasn't too varied, Byleth could tell he enjoyed lecturing the students on how to fight. Something only a warrior could enjoy.

(Cocytus) "DESPITE THEIR TECHNOLOGICAL ADVANTAGE, FRALDARIUS, YOU AND GALATEA HAD THE UPPERHAND. THE EXPERIENCE YOU POSSESS IN FIGHTING TRIUMPHS THEIRS. BUT THIS MATCH WAS OVER WHEN YOU RUSHED AHEAD WITHOUT ATTACKING TOGETHER. THAT IS SOMETHING THE STUDENTS OF CLASS VII HAS OVER YOU."

Felix grunted, shaking his head. Ingrid just sighed while Rean and Laura looked worried for them.

(Cocytus) "SCHWARZER, ARSEID. WHILE YOUR WIN WAS COMMENDABLE, YOUR TECHNIQUE IS SLOPPY. YOUR FOOTWORK IS ALL OVER THE PLACE WHEN YOU MOVE. A CLEVER ENEMY CAN SWEEP YOU OFF THE GROUND IF YOU CONTINUE LIKE THAT. ENSURE YOU HAVE IT REFINED BEFORE THE EXAM."

(Rean & Laura) "Yes, Instructor!"

(Cocytus) "THEN YOU ARE DISMISSED."

Felix walked off without another word, making Ingrid frustrated.

(Ingrid) "Ugh, there he goes again. Thanks for the duel by the way, wanna have a rematch later?"

(Laura) "You bet."

(Rean) "Yeah, just let us know."

Ingrid nodded and ran off after Felix, but still making time to wave hello to Byleth, who quietly waved back.

(Cocytus) "WHAT IS YOUR ASSESSMENT, BYLETH?"

Byleth stepped up to his side, greeting the Class VII students.

(Rean) "Afternoon, Instructor Byleth."

(Laura) "Do you have any feedback for us as well, sir?"

Sothis floated over to Rean and Laura, inspecting them closely. Though they weren't aware she was even there.

(Byleth) "I agree with Cocytus. You shouldn't leave your legs that exposed when moving. But I have no doubt you'll have it down in time. You did good."

Laura's face beamed upon hearing his confidence.

(Laura) "Thank you, Instructor!"

(Rean) "If anyone else wants to train, we'll be sure to help them out, Instructors."

(Cocytus) "I HAVE NO DOUBT YOU WILL. NOW, WHAT BRINGS YOU HERE, BYLETH?"

(Rean) "Yeah, it is a little weird seeing you out this early."

(Byleth) "I'm just making the rounds is all. I'll be heading to the faculty room after this, I have no doubt I need to tell Towa to take a break."

(Rean) "Ah, I'll make sure to pay a visit to her later as well."

(Laura) "I'll be off to grab some water then go back to training. I'll see you later, Rean. And thank you for your time, Instructors."

Laura bowed to everyone then left the training hall, Rean promptly doing the same.

(Cocytus) "...SOTHIS, WAS THERE A REASON YOU WERE EXAMINING THEM SO CLOSELY?"

Sothis narrowed her eyes.

(Sothis) "Just trying to look at their Arcus thingies. No idea how it makes them stronger..."

(Byleth) "Beats me. Everyone in our House seems to have a gimmick."

(Cocytus) "HMPH. GIMMICKS WILL NOT GET THEM FAR IF THEY WISH TO SURVIVE. REGARDLESS, I WILL REMAIN HERE UNTIL I AM NEEDED."

Byleth nodded respectfully to Cocytus and left with Sothis.

Students (House Isekai) Satou Kazuma, Yuki Takeya (Blue Lions) Dimitri Alexandre Blaiddyd (Golden Deer) Claude Von Riegan (Black Eagles) Edelgard Von Hresvelg

Byleth exited the training hall and was on his way to the faculty rooms before noticing all three house leaders were speaking with each other.

Next to-

(Sothis) "Yuki? And oh boy, Kazuma."

(Byleth) "What could they be talking about?"

Byleth and Sothis decided to investigate as Yuki noticed him.

(Yuki) "Oh, hi Byleth-sensei!"

(Kazuma) "Hey you two."

Dimitri raised an eyebrow at his comment, but didn't say anything.

(Dimitri) "Professor."

(Claude) "Heya teach."

(Edelgard) "Is something the matter?"

(Byleth) "Just thought it was strange for you all to be together is all. Plus, Kazuma is here."

(Kazuma) "Oh come on, I didn't do sh-"

Kazuma immediately stopped himself when he glanced at Yuki.

(Kazuma) ...I didn't do crap, lay off!"

(Yuki) "We were just talking about the upcoming trip all houses are going on!"

(Dimitri) "The Battle of the Eagle and Lion, to be exact, professor."

(Kazuma) "Yeah, apparently the three houses will be all fighting against House Isekai. Unsurprisingly."

(Yuki) "I bet we can kick some butt!"

(Byleth) "Interesting."

(Edelgard) "We were just wanting to let our fellow classmates know what's in store."

(Byleth) "I haven't gotten word of this."

(Claude) "Well, we're technically not supposed to."

(Edelgard) "And why did you decide to add that part?"

(Byleth) "Claude-"

(Claude) "Relax, teach! I didn't break any rules. Besides, it was Kazuma who told us."

(Kazuma) "What the- WAY TO THROW ME UNDER THE BUS, JACKASS!"

(Yuki) "U-Um...We're not in trouble, are we?"

Dimitri and Edelgard looked at each other confused while Claude whistled innocently.

(Dimitri) "What's a bus?"

(Edelgard) "I'm...not sure."

(Byleth) "No, you're not in trouble Yuki. And first of all, Kazuma, langauge. Second of all-"

(Kazuma) "Look, I just heard about it when I was with Megu-nee, alright? And speaking of, you can't tell me to watch my language when you're the reason we have to, Byleth!"

(Sothis) snrk!

(Kazuma) "And YOU can shut it, you floating furby!"

Now Yuki was laughing, while everyone was confused as to what a 'furby' was.

(Byleth) "...Second of all, just don't let other people know you heard this. I don't want anyone getting in trouble."

(Kazuma) "Yeah yeah, I know the drill."

(Yuki) "I can keep a secret, Byleth-sensei!"

(Dimitri) "Clearly better than Claude."

(Edelgard) "And we know who to go to when we need to tell anyone some, Yuki."

Claude nonchalantly shrugged and Byleth let out a small amount of air through his nose, showing his amusement.

Though his face still remained completely still.

(Byleth) "I'll leave you to it."

(Yuki) "Bye-bye, have a good day!"

(Sothis) "And remember, language!"

Kazuma silently mouthed 'piss off' to Sothis when no one was looking.

When Byleth left, Claude turned back to Kazuma.

(Claude) "So, what's that about language?"

(Kazuma) "Oh, that...Megu-nee doesn't like it when we swear."

(Yuki) "It just seems so...mean."

Kazuma couldn't help but ruffle Yuki's hat.

(Kazuma) "We don't mean anything by it, Yuki. Plus uh, Kurumi will hit me with her shovel if I swear around Yuki."

(Dimitri) "I-I'm sorry?!"

(Edelgard) "That's quite violent, isn't it?"

(Yuki) "Kurumi once chased after a pigeon with a shovel back home."

(Claude) "...W-Why exactly?"

(Yuki) "We were wanting to capture it so we could him as a messenger pigeon!"

(Kazuma) "Man, her answer to everything is a shovel, huh?"

Staff

(House Isekai) Doomguy, Towa Herschel, Angelica Rogner, Sharon Kreuger

Students

Crow Armbrust

Byleth walked into House Isekai's faculty room and saw a majority of the house's staff members tidying up the place.

Towa was carrying a stack of books while Angelica, Doomguy, and Sharon were dusting.

Then there was another person who caught his eye.

(Byleth) "Crow?"

(Crow) "Yo, Instructor Byleth! Come to join the fun?"

Crow was cleaning the tables with a wet cloth.

Doomguy gave a nod of acknowledgement while everyone stopped what they were doing.

(Angelica) "Heyo."

(Sharon) "Afternoon, Master Byleth."

(Towa) "Hi, Byleth! Sorry about the mess, we're just cleaning before the staff meeting tonight."

(Byleth) "Ah, sorry I didn't come sooner. I would've helped if I'd known."

(Sharon) "Worry not, we have everything already taken care of. Care for a cup of tea?"

(Byleth) "Think I'm good, you guys have definitely earned it though. And speaking of which, have you guys heard of the Battle of-..."

Sothis floated over to Doomguy.

(Sothis) "Hey big guy...What books are these?"

Doomguy pulled out a book and held it front of Sothis.

(Sothis) "Stuff for the classroom?"

Doomguy nodded.

(Sothis) "...Dungeons and Demons 6th edition...? Who is this book even-"

Doomguy's visor displayed a picture of Megumin from Kazuma's group, Ainz of Nazarick, Millium of Class VII, Ryuji and Ann of the Phantom Thieves, and Minako of S.E.E.S.

(Sothis) "Oh. Okay that makes way more sense."

(Byleth) "...So we'll need to be at our A-game."

(Sharon) "I'll be sure to let everyone know in the class meeting."

(Byleth) "Anyways, I'm surprised you're here Crow. I figured you'd be off gambling in town."

(Crow) "Nah, just wanted to spend time with Towa and Angelica here. They were my classmates in the original Class VII, ya know."

(Towa) "I'm sure it's not at all to hide from our classmates whom you owe money to, Crow."

(Angelica) "Or the girls you hit on."

(Crow) "Gee, sure feels nice to be appreciated."

Crow pointed a finger at Angelica.

(Crow) "And I do NOT want to hear that from you! You tried to hit on every girl here and failed miserably!"

(Angelica) "Tch, listen-..."

(Byleth) "Regardless, thanks everyone for your hard work."

(Sharon) "Of course, Master Byleth. Are you sure you wouldn't like some tea, or even a snack on the way out?"

(Byleth) "I'm good, thank you, Sharon. I'll leave you to it."

Doomguy gave a silent wave to Sothis and Byleth, before sitting down with the others.

Staff

(House Isekai) Sara Valestein, Megumi Sakura

Students

(Blue Lions) Ashe Ubert

Byleth walked down the faculty office and looked around.

(Byleth) "If my guess is right, Sara will probably be in the tav-"

Cutting himself off, he saw Megumi and Ashe walk into the Mess Hall together.

(Sothis) "Is Ashe helping her with something?"

The two walked into the Mess Hall, and saw Sara, Megumi, and Ashe behind the kitchen cooking something.

Walking up, Megumi's face brightened up immediately, a soft smile turning into a bigger one.

(Megumi) "Oh, Byleth!"

(Ashe) "Hello, professor!"

(Sara) "Perfect timing, give us a hand will ya?"

(Byleth) "With what?"

Byleth asked as he rolled up his sleeve.

It was then he noticed something was cooking on the stove in a small pot.

(Ashe) "I offered to help cook some soup! I'm teaching Professor Sakura how to chop some vegetables quickly while Sara was heating the meat. We just need someone to keep an eye on the pot."

(Byleth) "Sure. Megu-nee, do you not know how to cook?"

Megumi's face glowed red as she averted her gaze.

(Megumi) "I-Its not that I don't know how to, I'm just not very good at it."

(Sara) "Wish I could help, but I'm not exactly a queen at cooking either."

(Sothis) "I doubt she can do anything domestic..."

(Byleth) "Probably not."

(Sara) "Hey, I can do some other things you know!"

Sothis chuckled, knowing Sara would throw a bigger fit if she could actually hear her. It might have gotten a laugh out of Ashe and Megumi too.

(Ashe) "So you see here, you wanna hold the knife like this to-"

Ashe continued his lesson with Megumi as Byleth watched Sara cut the meat.

The knife appeared to be too dull, since it wasn't cutting anything.

(Sara) "Damn thing! I'm about to grab freakin' sword to cut this!"

(Byleth) "You just need some more force behind it, that meat looks pretty thick."

(Sara) "Well duh! I can do this, just gimme a sec here..."

Byleth chuckled, and he could see Sara grumbling because of it.

Meanwhile, Megumi almost dropped her knife upon hearing Byleth.

(Megumi) "Did you just laugh?"

Sara suddenly stopped cutting the meat and turned to him.

(Sara) "Holy crap, you did!"

Byleth blinked in confusion.

(Byleth) "I guess I did?"

(Ashe) "I mean, it is pretty rare to see you show emotion, professor."

(Sothis) "They're right."

(Byleth) "I guess so."

Byleth shrugged and went back to watching the stove.

Megumi giggled while Sara laughed along.

After a few more moments, the soup was ready to be brought for dinner that night.

After saying goodbye and thanking Ashe, Byleth turned to Megumi.

(Byleth) "By the way, Megu-nee. Did you tell Kazuma something about the Battle of the Eagle and Lion?"

(Megumi) "I did, why?"

(Sara) "The heck's that?"

(Byleth) "Apparently the students say its some kinda event where all three houses come together and fight. But we weren't supposed to know that yet."

(Megumi) "Huh? But I...Oh no. Oh no..."

Megumi put her hands onto her face.

(Megumi) "I was with Manuela and Sara last night, and then Kazuma helped me to my room..."

(Byleth) "Too much to drink?"

(Sara) snrk! "Yeah, one shot-"

(Megumi) "I TOLD YOU I COULDN'T HANDLE IT!"

Megumi suddenly grabbed Sara's collar. Given how short she was and that she wasn't a fighter at all, it startled everyone how strong Megumi's grip was.

(Sara) "GAH! S-Sorry, Megu-nee!"

(Byleth) "I'm sure it's not that big of a deal."

(Megumi) sigh "I just hope no one else hears of this."

(Sara) "Anyways, thanks for helpin' us ladies cook. I'm off to the taverns now that work's over with."

(Megumi) "Ah, don't forget we have a meeting tonight!"

(Sara) "Relax, I'll be sure to come on time."

Sara pat Megumi on the shoulder and winked at Byleth, heading off into town.

(Byleth) "...10 gold says she's late and blind drunk."

(Megumi) "That's a safe bet."

(Sothis) "I'll bet 20 Slayer has to drag her ass in."

Saying goodbye to Megumi, Byleth went out to the docks near the Monastery's lake to take a quick break.

They stayed there for a few minutes in silence before Byleth broke it.

(Byleth) "Hm."

(Sothis) "What is it?"

(Byleth) "Just thinking to myself. Most of the kids here have no problem talking with one another despite being from such different places."

(Sothis) "What about the guys from Nazarick?"

(Byleth) "Most people. Besides, some of them like Ainz and Sebas can get along great with our class.

(Sothis) "I guess thats true."

Byleth looked out to the water, vacant expression still present.

(Byleth) "How do you think all these groups got here?"

(Sothis) "By a portal."

(Byleth) "Well yeah, but I meant what caused those portals to happen? Some of our class are insanely strong, like Slayer or Aqua. But not strong enough to transport themselves to Fodlan of all places."

(Sothis) "..."

Both of them remained silent thinking about the answer. Most likely, not one single answer existed.

(Byleth) "...Do we even want to know that answer?"

(Sothis) "I'm...Not sure."

KABOOOOM!

The ground shook from a distant massive explosion, making everyone outside freeze in terror.

Byleth reached for his sword while Sothis frantically looked around.

(Byleth) "Are we under attack?!"

Several knights grabbed their sword and prepared to move before hearing a small girl's laughter echo.

Before that laughter was quickly silenced by a boy's angry screeching and swearing.

The knights slowly looked over to Byleth, unamused looks written all over their faces.

Byleth sheathed his sword and his face displayed emotion that first time today.

Annoyance.

(Byleth) "Sothis?"

(Sothis) "Ugh, ready to reverse time. First let's strangle that Megumin brat then I'll fix it."

Byleth didn't like reversing time out of combat, but when it came to the antics of Kazuma's group, it was required.

Byleth and several other staff members ran off towards the direction of the explosion together.

(Byleth) "I should've checked in with those morons first thing."

(Sothis) "Always next Sunday, right?"

Byleth wasn't sure the fact he was used to this was a good thing or not.

Probably not.

#fire emblem three houses crossover #fe3h crossover #fanfic #byleth eisner #sothis #House Isekai #crossover

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