Deku's...Harem? [BEING REPLACED]

One day a 4 year old Izuku Midoriya is taking a walk after finding out that he was quirkless. He was really sad that he couldn't be a hero like he always wanted to. This led to him being bullied and abused at school. One day on his walk home, the same bullies are bullying a girl with long periwinkle blue hair and same colored eyes. She seemed to be at least 1 older than everyone else. Izuku then steps in to stop her from being bullied but gets himself injured. When he tries to fight back, he awakens a power that he has never seen before. The girl who later he learns that her name is Nejire Hado becomes infatuated with the boy almost immediately after learning about what has gone on in his life. They start dating after a while but Nejire is going to UA , which forces them in a sort of long-distance relationship, but they are both loyal till the end. Nejire is hosting a succubus, and she eventually tells Izuku. Neither of them know what a succubus is until they learn that it's basically a sex demon. This is gonna be a long journey. (hosting a succubus isn't a quirk)