MDS-891 While he was away on a business trip, she was relentlessly raped with aphrodisiacs by his father and became addicted to sex. Akio Nakashiro.

The pure and beautiful college student Aoi was living with her boyfriend, but due to various circumstances, she ended up staying at her boyfriend's parents' house. Initially, she lived a stable and happy life, but gradually his father's sexual desires spiraled out of control. In her boyfriend's absence, her mind and body were slowly violated. Unable to tell him the secret, she was held hostage by her boyfriend's father, surrendering herself to disordered perverse intercourse...