InkwellDreamer
Yuto Nakamura is a timid high school student who has been the target of relentless bullying for years. In school, he's seen as weak, a loser, and an easy target. But what no one knows is that Yuto has a secret: outside of school, he's a completely different person.
When the final bell rings and Yuto steps out of school, he transforms into Kage, a calm, calculating, and ruthless leader of an underground gang. Kage is everything Yuto isn't-confident, fearless, and respected. But as the lines between his two identities begin to blur, Yuto must confront the trauma of his past and decide who he truly wants to be.
When the bullies cross a line and target someone Yuto cares about, Kage emerges in broad daylight, and the school will never be the same again.