Shimai Ijiri

Isshiki Yukari and her younger sister Miku face a stark choice following the sudden loss of their parents. The sisters inherit an immense debt owed to a criminal syndicate, which presents them with only two alternatives: accept death or submit to life as sex slaves. Their former existence of presumed happiness is irrevocably shattered as they are consigned to a world of cruelty and enforced debauchery. Under the tutelage of trainer Shunji Iwashiro, Yukari and Miku are systematically instructed in all forms of sexual service, including public humiliation and S&M. Their training is designed to anticipate every possible craving of future masters. They learn to please clients, their trainer, and ultimately, each other.