Haruka, a niece, came to visit a single-mother family during the summer vacation. Neither my uncle nor my cousin's brother can hide their surprises in the body that grew up after meeting for the first time in a long time. The chest is big and the tanned skin is irresistibly erotic. Let's take a bath together innocently! Because it is approaching, I can not hide the pain of this grown Ji Po. Haruka, who learned about the joy of sexual intercourse after her uncle gave sex education while massaging and taught her to have sex with her, went back to her brother at night and went crazy many times.