Yuki Mamiya

Dissipated Tokyo playwright, Kosuke has retreated to the countryside after deciding that he's done with women, but the indefatigable cat-in-heat Shiori has other ideas, clinging to Kosuke like his shadow.

When Naoko was a freshman in high school she was kidnapped and imprisoned by a man who lived next door. For one month, she went through hell. Finally, she killed the man and escaped. Now as an adult, Naoko is a doctor specializing in infertility treatment, but she also has another side. Naoko is a popular master in a S&M club.

The "Torture Club" is an official after-school activity at the private school Saint Honesty Gakuen. Yuzuki has no idea about the club when she enrolls, and gets abducted by the club members and hauled off the club-room. There, she finds out that upper-class student Aoi, her secret idol, is in the club, and decides to join, but…