Kayo and her older childhood friend, Keiichi, live in the countryside. Keiichi is tall, handsome, and his mysterious aura makes girls flock to him. But one day, on her way home, Kayo slips and almost falls off the mountain path. Although she is saved by Keiichi, she accidentally snaps the beads off of his amulet. With his ruined amulet emerges a strange, twisted side to her childhood friend... When Kayo offers to make up for what she broke, Keiichi responds: "Let me in." "I want your body, Kayo-chan." "I've wanted you for so long, and now you're finally mine." He pushes her down, trapping her arms, and Kayo is fondled, eaten out, and fully debauched by pleasure as she loses her precious virginity...