This is my take on the "younger zosan meets older zosan" and I had a lot of fun working on it. I wanna make companion comics where zoro and sanji talk to their younger-selves one on one, but with how long that would take I can't promise anything lmao
Arranged marriage au where Judge wants an alliance with the straw Hats because in the north blue they’re seen as warmongers who have been conquering the entirety of the East Blue. Judge thinks they’re the same as him and are conquering all these places for power. During the negotiations for the alliance Judge forces a marriage contract to be involved. He sees an opportunity to make sure he has blood ties to this powerful empire and it's also a great way for his failure omega son to finally make himself useful.
Zoro is the only 'eligible' alpha amongst the Straw hats and the rumors are that he's the strongest and most violent one, Judge thinks those'll be great traits to pass down to their children, maybe they'll cancel out Sanji's softness. Zoro doesn't want to get married, that will only get in the way of his goals. But Germa has access to resources and trade routes that the East needs, so he has to just deal with it.
Sanji is absolutely horrified when he finds out he's basically being sold to this empire in the East Blue and that his destined mate is going to be some huge macho asshole alpha. His biggest fear was to stay in Germa forever and for a second he thought he was actually getting a way out when Reiju told him. Until he hears who will be taking him and he immediately assumes the worst, it feels like he's only being moved from one cage to another.
When he is first gets off the ship in the East he thinks maybe he can make a run for it, disappear and live in the woods somewhere. Unfortunately he's caught pretty quickly by none other than his betrothed. The alpha is entirely unbothered by it, he almost let him run off completely. But he knows Nami would kill him if the prince went missing, so he has no other choice but to go find him.
However, Sanji does not plan to give up. He runs any chance he gets. Most of the guards and the officials around Zoro don't seem to care when it happens, they leave it up to Zoro to go off and catch him. When he is caught, Sanji goes kicking and screaming, he makes a whole scene of it. He expects to hear people chastise him, to be told he's not acting how an omega should, or how a prince should for that matter. But everyone is unfazed, no one tries to rectify his behavior, no one tells him off, no one punishes him. So he tries to take it up a notch, he actively antagonizes Zoro, he yells and swears, he smokes and bares his teeth. And still nothing. If anything it seems to make the people here like him more ?
Members of the Straw Hats are kind and take him in like he's actually a member of their pack, Zoro meets him blow for blow, their subordinates treat him with respect he's not used to since he's an omega. Sanji feels like he's actually welcome. But there's a heavy, despicable feeling in his gut, unease always sits in the back of his mind, because Zoro is still the Demon of the East, these are still the warmongers who have been taking over the East Blue. No matter how comfortable he feels on the surface, these people are still just as evil and violent as Judge. Right ?