The daily life of a (self-proclaimed) high school delinquent, fangirling and kohyuuing over the head prefect!?

(to) kohyuu (v. infinitive form) When one is surprised and excited, their breathing begins to kohyuu. (see: hyperventilation)

Summary: High school first-year Yuu is an ardent admirer of Head Prefect Atori, and in order to get her attention, Yuu begins to act like a delinquent. But while her intention is to appeal with her "badness" and "coolness," her simple-minded facade is seen through by Atori, who teases and treats her like a small animal...!?

(Source: MangaDex)