Izuku Midoriya. A kid without a quirk. Kinda. He has a quirk, he's just never manifested it. Because of this, his half-sister Izumi, and his childhood friend Bakugo bully him. Then, one day, Izumi breaks his arm. His quirk suddenly manifests, with bone armor appearing over his arm. When he finds out that he does actually have a quirk, he's enraged. Enraged at his mother, who told him he was quirkless. Enraged at his Stepfather, Toshinori Yagi, who never respected him. He leaves him home, and heads outside of the city, where he meets an old man who offers to train both him and his quirk. 2 years later, he reappears, a changed kid.
Izumina ship, because why the fuck not.
Mature: Langauge, Heavy themes, graphic descriptions of violence.
More than anything in the world, Izuku wanted to be a hero. He didn't really know what sparked this desire; maybe it was because he wanted to prove his parents wrong. Maybe it was because that's what his friend, Kacchan, wanted to do as well.
But when Izuku finally developed his quirk, it wasn't what he had expected. It wasn't WHEN he expected it, either. In fact, it's timing caused quite a bit of trouble. Only four years old, and Izuku Midoriya had accidentally killed his only living relatives.
The Bakugou family adopted Izuku. Katsuki and Izuku became like brothers, and began their path to becoming heroes together. Little did they know, Izuku's troubles with his quirk being "villainous" were far from over.
** I discontinued this because I'm not happy with it. I'm working on something with a similar concept, but different enough that I wouldn't call it a rewrite. Sorry. **