Okumura, who had always been curious about his friend Kouta's mother, Yuna, one day stayed over at Kouta's house. There, he drugged Yuna to sleep, stripped her naked, and took photos of her with his phone. Later, when he was caught sneaking into Yuna's room and rummaging through her underwear, he threatened her with those lewd photos and began to indulge in the body of his long-admired friend's mother. From then on, Yuna had her bra confiscated, and her beautiful breasts, which swayed without a bra almost every day, were constantly toyed with...