Harem, School Life, Shoujo, Psychological, Drama, Mystery, Shounen Ai

Tsumugi Ayase is an orphan who has been held by a mysterious man who has never seen. One day is transferred to an academy where there are no rules and teachers cannot enter the bedroom. Only the "King" makes the rules through a process involving "games". Everyone else below the King is in a caste system, with bullying running rampant based on what rank you are. How will Ayase adjust? Who will be the real person who sets the rules within the academy?