Nozomi lived with her adoptive father. Her adoptive father, Mikijiro, was bedridden and in need of care, and Nozomi and he had an abnormal relationship. One day, Nozomi's stepson, Tsukasa, saw her providing abnormal care. After learning of Nozomi's abnormal relationship with her grandfather, Tsukasa began to threaten Nozomi and use her as an outlet for his desires. The relationship then degenerated into a triple incest between grandfather, stepmother, and son...