The daughter of an old noble family, Kurusuin Reiko, was violated even in the anus by Takeo Shirokaza, and fell into the life of a health girl. Reiko, aiming for a chance of revenge against Takeo Shirokaza, teamed up with Hayase, Takeo's butler, to anally train Takeo's adopted daughter and achieve her revenge. Having tasted the thrill, Reiko, along with Hayase, targets individuals to lure them into the world of anal pleasure. This time, she has set her sights on a 39-year-old university professor of sociology, known for her sharp commentary and dubbed 'the ice woman', Yukiyo Himuro, a divorced woman.
