SPRD-1391 - Better than my husband... Tutoring my nephew

Shoko takes in her nephew who is preparing for his entrance exams. With an indifferent husband and a daughter who bullies him, Shoko feels sorry for him, especially since her sex life is non-existent. One night, while masturbating in the bath, she discovers that her nephew failed his exam because he was watching her. He demands she take responsibility, and feeling guilty, she ends up giving in to his desires.