Shizuko gradually noticed her underwear going missing and began to feel suspicious. One day, she accidentally caught her son Satoru masturbating while sniffing her panties. Shocked and confused, Shizuko could not hide her disbelief—but Satoru confessed, "I love you, Mom," and forcefully pulled her breast into his mouth. Overwhelmed by the warmth and intensity, Shizuko's heart trembled, unconsciously responding to her son's mature body.