It seems that my best friend's son, Yuta, is not getting good grades. Eri is worried about whether she's studying properly even though she's an exam student. Eri decides to do her best for her best friend and immediately visits Yuta's room... What she saw there was Yuta who was single-mindedly indulging in masturbation. Eri thought that if she satisfied her horny desires, she would be able to concentrate on her studies.
