Mrs. Uehara, a married woman with a strong desire for perversion and a submissive nature, experiences her final affair. "I didn't intend to go this far..." she says, yet accepts the proposal for unprotected sex, predictably becoming addicted to the pleasure of a real penis. "Please be rougher, I want more," she transforms into a lustful beast, seeking intense stimulation, and shows no regret as she reaches her final climax, covered in semen.