A Brand New Life

Izuku 'Deku' Midoriya was a Quirkless boy, key word 'was'. One day in class, the day after he agreed to be All Might's successor, something happened to him, causing him to turn into a girl as well as something everyone thought(hoped)was fake.
Now Deku and Kacchan, his/her childhood friend, discovered that there's another World hidden in plain sight that they're now a part of.
But their lives are changed forever. Joined by the nephew of the Boogieman, a run away dragon prince who can do magic, and a girl, who's the same as Deku with one difference, they work together to keep this World a secret and stop those from it who want to do harm

Kind of My Babysitter's a Vampire AU.
I adopted this story from Anime-lover109.