Negativity

Izuku yagi has never been positive from the beginning, neglected by his parents and bullied by his sister and friends for being quirkless, running away from home, and kidnapped by scientists who injected izuku with the experimental Devil's Breath serum. The treatment triggered a reaction that altered Izuku's physiology, granting him superhuman abilities. Killing the scientists with his new power izuku will rise in the criminal underworld with the feeling he always had in his life, Negative.
The story idea was taken from @scorch1000
Any of the pictures In fanfics aren't mine. (Some are edited but still don't mine)