Gender neutrality
Izuku midoiya, A boy with a dormant quirk that only manifested when he....Tried to drink alcohol. Now a girl he has to fight his way through the thirsty boys and find a way to reverse it, For his chance with Uraraka ochako depends on it.
Father figure
Izuku "Deku" Midoriya, Begins to despise the whole quirked people are better ecstatic of the world. This leads him to joining the eight precepts of death in a attempt to assist them in creating a quirkless future, Though, on the way, he finds a new purpose, in the form of a little girl named Eri.
Merge
In a fight with eachother Dabi and Deku are merged by a quirk. Now a single being with a mixed personality, memories, and quirks the new Daku has to decide, Villain or hero, A path with people they both love.
Or
Merge
In a fight with eachother Dabi and Deku are merged by a quirk. They both keep their own minds but share a body and quirks. Will Deku be able to overwhelm Dabi and proceed with his future with being a hero or will Dabi overpower Deku and proceed with his future in carrying out stains mission.