It seems that Yuta, the son of my close friend, is not improving his grades. Eri, who was consulted about her worries that Yuta, a candidate for university entrance exams, is not studying properly, decided to help her friend out. Eri immediately visited Yuta's room... What she saw was Yuta's figure absorbed in masturbation. Thinking that satisfying his sexual desires might help him concentrate on his studies, Eri made a promise, 'If you work hard, I'll have sex with you...'.
