Chizuru, a fifty-year-old widow, unable to accept her husband's death, coped with her loneliness by pleasuring herself daily. Her brother-in-law, consumed by twisted fantasies, discovered her vulnerable state and, driven by selfish justification, raped her to satisfy his own desires. Afterward, he forced her into submission, turning Chizuru into his personal sex slave to fulfill his ideal lifestyle. As the abuse continued, her mind gradually warped under the psychological torment. This story depicts the disturbing, twisted relationship born from his delusions and the descent into madness that reshapes her life.