Okumura had been interested in his friend Kota's mother, Yuna, for some time. One day, Okumura decided to stay at Kota's house, and he put Yuna to sleep with drugs, stripped her naked, and took pictures of her on his cell phone. Later, when he was caught sneaking into Yuna's room and rummaging through her underwear, Okumura threatened her with obscene photos and began to devour the body of his friend's mother, whom he had admired. After that, Yuna's bra was taken away, and her beautiful breasts, which swayed without a bra, were played with almost every day...