Ryohei Takamiya, is a student with excellent academic performance and a fairly talented tutor. He goes to the Japanese outback to teach Maria, the daughter of a high-ranking official who recently passed away. Ryohei expects to meet and have hard sex with three incredible beauties: Mari Mamiya – a widow and now the head of the Mamiya conglomerate. She is the owner of the Black Rose Manor, where she lives with her daughter most of the time. Maria is Mamiya’s daughter and heiress. She is beautiful, but not very smart and quite spoiled by a rich life. Ira is the servant and manager of the Black Rose Museum.