MDS-891 While he was away on a business trip, a beautiful girl was relentlessly raped by her father and became addicted to sex. - Aoi Nakagusuku

Aoi, a beautiful, naive college student, was living with her boyfriend, but due to various circumstances, she ended up staying at her boyfriend's parents' house. - At first they lived a stable and happy life, but gradually his father's sexual desire went out of control. - Her mind and body are gradually violated while her boyfriend is away. - Her father holds a secret that she cannot tell him, and she surrenders to chaotic trance sex...