I want to help my classmate who is being bullied under the guise of a "punishment game confession."

There was a classmate girl called "plain girl." She was subjected to insidious harassment and bullying by female students, and the teachers turned a blind eye to it. Male students didn't pay her any attention either, but I wanted to help her. That said, I couldn't help her coolly like the protagonist of a story. I couldn't afford to lose what I had painstakingly built. Being a worthless scumbag, I lost a bet with a friend one day and was forced to confess to her as a punishment game. Yeah, there's no point in using her like that. So I make a serious confession to her under the pretense of a punishment game, but whether she'll be saved by that is probably up to her. This is a story about a boy who can't help a bullied girl like a storybook protagonist, but quietly gathers courage and gets lovey-dovey with her. ※Doting, dependence, dependence, sweet romance planned.