After being diagnosed with a disease that makes sexual arousal fatal and undergoing ten years of self-control training, Rintaro's about to face his ultimate test - an all-girls school. 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 constantly being fought over in a conflict centering around three powerful girls - the Dragons!