My Little Monster

🇯🇵となりの怪物くん · Tonari no Kaibutsu-kun

MangaShoujoFinished🇯🇵 First published in 2008ComedyRomanceSlice of Life

Robico story, art

Mizutani is a self-absorbed overachiever, concerned only with maintaining the highest grades in school. Haru is an impulsive short tempered brute, who scares everyone with his explosive bursts of violence. Haru gets suspended on the first day of school when he encounters some bullies harassing a student and dispatches the bullies with great bloody violence.

Synopsis via AniList