Fitch exclusive Reina Momozono transforms into a submissive slave at a hot spring resort, transforming into a masochistic woman who finds pleasure in service play! Reina and her parents have their company forcefully acquired by a ruthless but capable man. Reina is then blackmailed with old videos of herself, becoming the man's secretary and mistress, and her voluptuous busty body is trained. At first, Reina naturally resists, but every time she is assaulted, her body begins to feel pleasure, and as her breasts are roughly fondled and her vagina is assaulted, her disgust turns to pleasure, and she loses her mind. Eventually, as her mind and body are dominated, she acknowledges her perversion and begins to desire the man's cock...