Amai Choubatsu: Watashi wa Kanshu Sen`you Pet

The tale is defined inside a prison in the future. It requires Saotome Hina, imprisoned despite her innocence, as well as the elegant yet sadistic guard Miyoujin Aki. Hina's heart and the entire body are be subject to Myojin's "heartless yet sweet domination" from physical examinations to lovers' prison visits.