[Minami Hatsukawa SM bondage!] Minami, a student taking the entrance exam for a university in the city, came to Tokyo from the countryside and stayed with her uncle Akihiko. The uncle was single and lived alone, but when he saw his niece, whom he had Ke'ai since she was little, grow up, he regained his vitality, and Minami, who treated him the same way as she did back then, eventually he began to have special feelings for her... Bondage, creampies, endless training, the girl's Kokoro is consumed by ugly desires and tightly closed.