Momose Riko was an acclaimed writer who shot to fame after winning a newcomer's award for her SM novel based on personal experience. However, her second work received harsh criticism, leaving her struggling to write her next piece. At that point, her editor Kato strongly urged her to write another SM novel and introduced her to Hyoshitsu, a legendary SM author. Kato then made an extreme proposal: requiring her to conduct firsthand research by visiting an SM club. Drawn into the dark side of the publishing world, Riko finds it increasingly difficult to overcome the men's desires—even more so than exhausting her mind and body to produce her work. Within this turmoil, she plunges deeply into twisted masochistic pleasure and discovers a new sense of self.