Story:
The story revolves around Takurō Hayami, a transfer student to a mostly female populated boarding school St. Arcadia. Due to the school's very recent admission policy that allows male students, most female students initiate a sexual intercourse with Takurō. Takurō appears like a regular student, but, during the sex orgies, the girls realize (including the unwitting Takurō) that he has a special capability - an "Ultimate Sex Power" that becomes the focus of St. Arcadia's sexual power struggle.
