Yoichi and the gang go to a hot springs for free due to Ibuki winning a prize at the festival last episode. The gang is overwhelmed by the grandeur of the hot springs. While the girls enjoy the hot springs and its facilities, Yoichi walks around the area and thinks about his former life in the mountains. Yoichi and the gang eat dinner with their host. The host say that ghosts in the cave behind the inn is the reason why there are no other guest in the inn. Yoichi and Ibuki volunteer to exorcise the ghost in return of the hospitality they received and they start walking to the cave. Chihaya relays this to Ayame, who feigns ignorance and walks out of the inn. Immediately after, Ukyo and his sister, disguised as the host, release a sleeping gas throughout the inn. Arriving at the entrance to the cave, Yoichi and Ibuki fall into a hole and both gets knocked unconcious. Yoichi wakes up and finds Ayame next to him, who starts seducing him. Meanwhile, Ibuki wakes up and sees Ukyo, who tries to rekindle their friendship. When Ibuki sees Ayame seducing Yoichi, she says that it cannot possibly be Ayame. Yoichi reaches the same conclusion but voices his reason that Ayame's breast aren't that big. Ibuki beats Yoichi. Sakon takes off her Ayame mask and releases another dose of the sleeping gas. Ibuki instantly falls asleep but Yoichi is able to resist the effects of the gas to an extent. Ukyo and his sister take Ibuki away, leaving Yoichi struggling to get back to the inn. When he gets inside the inn, Yoichi is faced with a series of assailents. Yoichi beats up all of them, leaving himself weak and open for Nuezume Jinjyuro. Ayame saves Yoichi and helps defeats all the remaining opponents. Ayame and Yoichi finds Kagome and Chihaya, wakes them up. Together they search for Ibuki. When they do find her, she appears to be hypnotised.
