​Isshiki Yukari’s life takes a dark and tragic turn when she loses her parents and freedom. Inheriting a crippling debt to a powerful crime organization, she and her sister, Miku, are faced with a horrific choice: become sex slaves or face death. Thrust into a world of depravity, the sisters must navigate a vicious landscape of lust, cruelty, and debauchery. Guided by the experienced and sadistic sex slave trainer, Shunji Iwashiro, Yukari and Miku are subjected to public humiliation, S&M, and taught to fulfill their masters’ every desire. In this hentai series, they must not only please their clients but also satisfy their trainer and explore their own desires through unexpected encounters with each other.​