Sakuraharujogakuin, a school of learning where girls of noble lineage gather. The protagonist was hired there as a janitor. But that is only his public face. His true role is 'male actor'. The students are all celebrities. Scandals are strictly forbidden. Therefore the sexual desires of the female students grow larger and more twisted. Playing the 'ideal man' for those girls is the duty imposed on the protagonist. The first student is 'Ichijo Saeki'. A student council president excellent in both academics and sports, from a prestigious family that has even produced prime ministers, she is a person destined to stand above others. However she has a sexual inclination she cannot tell anyone about. The protagonist acts out a role in order to satisfy her. As her ideal man... her 'Master'.