In this adult stepfamily role-play, Tsumugi has tried to build an awkward but cordial relationship with the stepfather her mother's remarriage brought into her life. After he loses his job, sinks into depression, and can no longer work, her mother starts taking night shifts. Left alone with his adult stepdaughter, he begins entering her room while she sleeps, touching her body and masturbating beside her. The nightly abuse continues and gradually escalates.