Having sex with a young, innocent girl until she becomes stupid (YUI ETQR-538)

Unable to stop masturbating every day...unable to satisfy his sexual desires...this is the story of his childhood friend "YUI". By the time they realized it, they had already developed a sexual relationship...he demands penises everywhere, at home, in the park... He only cares about sex and neglects his studies, almost failing his exams. He'll be expelled if this continues! After a two-week ban on sex, he studies hard and avoids failing... Neither of them can satisfy each other, and their sexual desires are about to explode...Today they make love in a love hotel...