The Seven Star Academy, a private boarding school for boys with a pseudo-brotherhood system, where “the only thing you don't have here is freedom and women" has become an isolated facility for the privileged class that accepts any troubled children with money and connections.

Yakubukuro, the floor leader of the third dormitory “Hakushu,” was once labeled as a problem child, and was also a handful for his room-mate, Brother Narazaki, who has a mysterious charm.