Fitch exclusive Rena Momozono becomes an obedient slave at a hot-spring resort, transforming into a deeply submissive woman who finds joy in serving. After a ruthless but capable man forcibly acquires her family's company, he blackmails Rena with an old video and makes her his secretary and mistress, training her voluptuous body for his pleasure. She initially resists, but every rough assault on her breasts and pussy turns disgust into pleasure and strips away her reason. With her body and mind under his control, she accepts her own submissive desires and begins craving his cock.