Oto is a popular and earnest female student known for her diligence. As a member of the student council, she maintains a pure and proper life with her boyfriend, Makoto, who is also a council member. One day, she encounters Sho, a fellow student, on the street. Sho is a troublesome youth who has caused disturbances in class. Driven by a sense of justice, Oto visits Sho's home, only to find herself trapped with Sho and his brother, Sadayoshi, a yakuza member. Before she can understand what's happening, Oto is overpowered and subjected to brutal sexual acts, becoming a victim of their sinister intentions. [Please note that there may be occasional irregularities in the images or audio, but these are not defects of the product itself.]