Like many women, Kuwasawa Amami is painful but she still insists.

Li Yong moves carefully and tries to give Kuwasawa Amami the best enjoyment. In this process, he gradually finds that the method of practicing by having sex is not feasible for all women. This is exactly what his master said. Only when a woman of special constitution practices similar skills together with him can he achieve the benefit by having sex with her.

Kuwasawa Amami is just an ordinary woman. ...