Quirkless Loser

Izuku Yagi was once a bright and happy kid. Until he was diagnosed quirkless. There his life fell into darkness, neglected by his parents, bullied by his sister and ex-best friends. Yet he still hung on to his dream of being a hero, just like All-Might. Until he over-heard All-Might was his dad and stated how he didn't have the heart of hero, yet his bully sister was. Izuku then, accidently ran away, broken by the shock. But while on the street, he discovers something that'll make him a hero. One that saves the kids discarded like him.