Yokoyama Yume-chan, who exudes a delicate and elegant charm, appears to be frustrated. It seems she hasn't had sex for a month. When she consulted with a male friend, he suggested that maybe her approach was clumsy. So, they decided to practice, and as they did, they both became aroused, ended up kissing and performing oral sex, and despite her saying no to anal, they eventually ended up having unprotected sex. Caught up in the pleasure, they promised to continue in the future, but is it really okay?
