A Dream i had which could be turned into a crossover writing prompt

[Toncka]

i turn on the trailer. (i sundunly understand the premise but will explain it) Famous heroes from multiple worlds can be reincarnated, Regaining there memories slowly from the age of 6, if they sing or dance from their heart and they are not reincarnated nothing happens however if they are reincarnated  black lines appear like an old camera. Theres a teenage girl with brown and blue hair and a red ribbon tying it together, she is talking to two friends(one is black, with grey hair and the other is blonde) when a boy her age, blonde with(oddly) a beard He is walking towards them, and hands her a towel, the girls beside her freak out because that was her husband in her former life: king dimitri(the guy from fire emblem three houses) she is shocked and says no to telling him this, saying that she doesnt want to remember those times. A green haired boy comes pass and is talking to short nine year old girl also with green hair, he is wearing a casual top holding a coat behind him. It flashes to a black haired boy being chased by a brown haired boy with the brown heard one wearing a white suit. We cut to the brown and blue haired girl in her parents house, she hasnt told her parents she is a reincarnation(most kids do this apparently) we are not told why, they say she got into the school she wanted to go to, the other teens we saw apparently all also got in to that same school however it is not shown, we cut to the start of the school year and their is a performance competition announced which all but the green haired and brown haired boys, not taking part in. the tagline romance and truths will be revealed appears and the trailer ends

 

change it as you wish, change the charachters(every charachter mentioned IS a charachter  from something Most of them arent fire emblem though) or what creates the black lines  but if you make this mention me, i do take credit for my dreams after all.