Nanami Matsumoto JUFE-013: A busty college student with a sensitive constitution, trained by an older man.

College student Nanami Matsumoto has a boyfriend, but neither of them is able to have sex fully for the first time. One day, Akikawa, a friend of her father who watched her grow up, comes to her house. He gets drunk and takes advantage of the situation to have sex with her. She becomes completely immersed in the caresses of the middle-aged man, and from that day on, she becomes extremely sensitive, constantly fantasizing about older men and even actively seducing them...