Story
Rintaro's got a problem: Sexual arousal can be deadly for him. This is terribly inconvenient when he's admitted to a former girls' academy where 99 percent of the student body is female! And worse, school supremacy is a Vicious power struggle centered around three powerful girls--the Dragons! (Source: Yen Press) Note: Includes four extra chapters.
Synopsis via AniList (English).
Preview
Promo video for this title.