Riri (Rio Kuriyama) has been targeted by her perverted boss in a planned manner, but her desires suddenly erupt and she is brutally raped. Riri's boss uses his huge cock to slowly and sticky rape her, smearing semen onto her lips and beginning his own marking. As Riri continues to be blackmailed and raped, her body begins to feel humiliated, contrary to what Kokoro is saying. "You were cumming so much," says Riri, sad but sensitive, and her perverted boss rejoices. As the days of humiliation go by, Riri's body becomes unable to live without her boss's huge cock...