Playing with Fire
Tag List: @issamomma @repostingmyfavs @chickennugnugnug
Warnings: Platonic Yandere themes, Dabi is intimidating, being held somewhere against will, runaway teen
Request: Mabye C1 for yandere older brother dabi? (Love ur writing btw 🫶🏽)
Prompt: “Don’t play with fire if you don’t want to burn.”
Master List here.
Yandere Alphabet Prompt here.
Note: I don’t really like how this turned out. I’m sorry if it’s shitty. 😭
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You’re sick of it. You’re so tired of being treated like a baby day in and day out. Even Shoto, who is only a year older than you, treats you like a little girl. The worst one, even worse than your father, is Dabi. He treats you like you still sleep with a nightlight in your room.
Coming home from school, you walk in and find Dabi and Shoto in an argument. Good, they’re distracted. You sneak your way up to your room and really contemplate if this is what you want to do. You’ve been thinking about running for over a year now. You’ve saved up some money. You could get a job if you’re fast enough.
Deciding it’s what’s best for you, you sneak out of your room with your backpack that’s been ready to go since you first came up with a plan.
Sadly for you, nothing ever goes accordingly.
———
Sitting on a curb in the poorer districts of town, you take out a protein bar as you wait for the bus. Your best bet was getting as far away from your house as you could, and but the further you walked, you found yourself in unfamiliar territory.
There are all types of people walking around out here, and one in particular belongs to the same organization as Dabi, an organization you have no idea about.
A large lizard man, Spinner, recognizes you as Dabi’s “baby sister”. Not exactly sure of what to do, he walks up to you and grabs you by the arm, pulling you up off of the curb.
You drop your snack in the process and glare up at him.
“Hey, what gives, jerk?! Let go of me!”
“What’s a young thing like you doing out on these streets? Your big brother isn’t gonna be happy when he finds out about this.”
Those words immediately cause your blood to curl and freeze.
“How do you know him?” you whisper, timidly.
He shows his sharp teeth upon answering you. “Doesn’t matter. If he finds out I spotted you out here and I didn’t tell him, my ass is ash. We’re going back to Shig’s place. Come on.”
He pulls you along, backpack strapped.
“No, no, I’m not going back!” You ball your fist up and try to punch him, anything to make him let go. None of it works as he pulls you along to some run down bar.
Spinner pushes you towards a barstool.
“Who’s this brat? She looks like such a lovely young lady!” Twice questions and declares all at once.
Shigaraki looks at you and Spinner with a quirked eyebrow behind his mask. “Don’t tell me you’ve got a kid now.”
“Gross, as if,” is your haughty reply.
“Not my kid. She’s Dabi’s little sister, and apparently a runaway too. I don’t have my phone on me. Thought I could use someone’s to call Fireball.”
Everyone suddenly goes quiet, knowing how important you are to Dabi.
Magna, knowing better than to do nothing, is the one who takes out her phone and dials your big brother’s number.
“No!” In a fit of anger and panic, you shoot an icicle at his phone. The sharp dagger goes through it, pinning the electronic device to the wall right in between two bottles of liquor.
Shigaraki stands back watching everything happen. He’s slightly impressed with your accuracy, but Himiko is less than impressed with you almost stabbing her big sister.
Himiko takes out her blades, taking a threatening step towards you. Tomura sticks his hand out, keeping the blonde girl from doing anything rash.
“Lock her up in one of the back rooms. Twice, guard it. Don’t hurt her either. You know he’ll burn this place down if even a hair is out of place on the brat.”
———
Crying and pounding on the door of the windowless room to be let out, you quiet down upon hearing a very familiar voice lighting up the bar.
Oh no…Touya-nii is already here.
You try your hardest to create an icicle barrage, casting them towards a wall. It does nothing but shred wood at an irritatingly slow pace. What’s worse is that there’s a wall of concrete behind the wooden panels, and you sink down in a corner as your fate is sealed.
The door bursts open, and in walks your pissed off big bro.
“The fuck is wrong with you, bitch?! You fucking left? Left?! Like it was no big deal?! Answer me!”
As hard as you try, you can’t think of anything to say.
Dabi picks you up and roughly shoves you up against the wall, crouching down so that he’s eye level with you. He keeps a hand on the collar of your jacket, pinning you against the wall so that you’re barely standing on your toes. All of the rage swirling in those electric cobalt eyes are clear as the bright blue sky, and you find your own eyes welling with tears.
“I’m…tired of you treating me like a little girl.”
“You ARE a little girl. What? You got mad and thought you could just run away from me like a stupid little shit? Fucking can’t believe this right now. First Shoto, now you.”
“Let go of me! You’re scaring me!”
“No, you can shut up! You are my baby sister, and you always will be. After this, you’re never leaving my fucking sight again. If you try anything like this in the future, I will hunt you down. I’ll kill anyone who gets in the way. Do you understand me?!”
As he rants, his hand on you grows warmer and then hotter. The heat uncomfortably pricks at your skin until it builds up to a burn.
You bring your feet up, placing them on your big brother’s hips, pushing him away with the strength only pure adrenaline can offer. It causes him to take a few steps back and drop you at the same time. You run towards the door, only to see a line of fire shoot past you, narrowly missing your head.
Dabi blocks off your exit.
Hands shaking, brows knit with worry, eyes wide with fear, you turn around and look up at him.
“Hasn’t anyone ever told you that you shouldn’t play with fire if you don’t want to burn?”
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