Hitomi lives with Takeshi, the stepson of her older husband. Though he appears friendly on the outside, Takeshi harbors dark, hidden desires. Sensing Hitomi's dissatisfaction and sexual frustration, he blackmails her by threatening her husband's subordinate and forces himself on her. He repeatedly rapes her, then uses the evidence to blackmail and control her further. As Hitomi endures his relentless assaults, Takeshi continues targeting her voluptuous J-cup body, turning her into his personal sex slave.