You are the son of one of the top hero's. Your father was old friends with Endeavor. When your father dies saving Endeavor's life, he decides to adopt you. Your forced to move in with him and 2 of his children. The youngest is your age and you ended up enrolling at his school. You end up in the same class as him. When there you are befriended by a green haired boy who you start to like. You end up coming to find out that happens to be your now new Brothers boyfriend. How will you handle becoming attractive to his boyfriend? This is an X male reader story but if your a girl you can always change the pronouns and make it a girl. story does not follow the anime, they might be a few things in common story and character wise but other than that is different.