Open Sesame(2001)

OPEN SESAME

amato Danjo is a boxing rookie champion from a small town called Namishima. Due to some circumstances, however, he and his family had to move to Tokyo. On his first day, he discovers that Azabu Academy used to be an all-girls school! How will he and the rest of the male students survive in a world that's (brutally) ruled by women?!

(Source: Manga.Club)