In a secluded mansion deep in the mountains, the Black Rose Mansion, stands quietly. A college student, Takamiya Ryouhei, is excited to visit the mansion as a tutor for a week. In the mansion, there are three women living there: the bewitching mature woman Mamiya Marie, her beautiful daughter Maria, and the maid Aira who serves the house. Assigned as a tutor for the beautiful and selfish girl Maria, Takamiya is gradually seduced by their indecent temptations as he spends time in the mansion. While being toyed with by the three lustful women, he becomes increasingly immersed in pleasure-filled days with them, and the gears of fate start to go awry. What awaits him in the end, a rosy future or a nightmarish reality? The doors of the Black Rose Mansion are now opening...