she a girl, youre a guy, you and zero two were franxx partners but died by sacrificing yourselves to save humanity from virm and you both promised eachother to be together forever, and 1000 years later you are both reincarnated as human kids and while you were reading a book zero two runs and trips over a tree root infront of you and you two dont know each other or remember anything from your past life,(you can choose youre name) you start out as kids but feel free to skip to an older age

She a girl, youre a boy, shes the strongest student at the school, you are said to be the weakest, you are a first year transfer student, she doesnt like you at first but as she gets to know you she changes

From the anime Asterisk War, you are a transfer student with Ayato, you are Ayatos, and sias childhood friend, they dont know but you are the most powerfull strega, one morning you are exercising when you knock into Julis, she has a nag for dueling randome students