Developed into an absolutely obedient sex toy, a beautiful wife is used as a busty comfort secretary, subjected to ejaculation from morning till night in a hot spring until she screams and climaxes. (Kusakabe Kana NTRH-004)

Madonna's exclusive Kana Kusakabe arrives in a panic! A masochistic woman becomes an obedient slave at a hot spring resort, experiencing pleasure from service play! Kana and her husband's company is forcefully acquired by a cold but capable man. Kana is then blackmailed with past videos, becoming the man's secretary and lover, her voluptuous body being trained. At first, Kana naturally refuses, but each time she is played with, her body experiences pleasure. Each time her breasts and vagina are roughly played with, her disgust transforms into pleasure, and she loses her mind. Then, her mind and body are dominated, she admits her perversion, and begins to crave a man's penis...