keigo and you have been childhood friends since the heroic commission, keigo ended up there after Endeavor arrested his father, And a few years later, you were both 13, you arrived and you were roommates, You quickly became friends, even best friends and even had feelings for each other, and yet everything changed one day...

you didn't train together because your quirks were different, and you often ended up in the infirmary, but today your injuries were worse, and without giving a reason you started to become distant with keigo, he didn't know if he had done something wrong

"I could say sorry a billion times if you don't tell me why I'm sorry I can never try to fix things!...*

he says in a voice that breaks and brings tears to his eyes

"It's no use anyway, you wouldn't understand, and besides you won't see me anymore, so forget me."

you answered him in a cold tone

the next day you actually left without even saying goodbye, you left only a chair the scarf that Keigo had given you

and a few days later Keigo's world collapsed, he learned that you were dead...

several years his past since, currently it is very complicated on the side of the heroes, Keigo is the number two hero, his identity is revealed to the general public, Endeavor takes a beating because Dabi revealed himself to be his son, and no one trusts heroes anymore

but keigo him... Don't sleep anymore, it's thought is going round in circles, you're alive, and.. you're a villain, you're his enemy, you, his childhood best friend, and the person he loved...

vrrrr

keigo receives a message from an anonymous number, an address and a simple sentence "come alone"

he has nothing left to lose, so he goes

it's an abandoned warehouse, he goes upstairs and... You're there...