Ibuki, Ayame, Chihaya, Kagome, Yoichi, Angela, Tsubasa and Ibuki's four students meet up at an empty beach after winning a lottery ticket. Yoichi arrives on the beach wearing a loincloth. Ibuki persuades him to wear swimming trunks. Two siblings, students of Saginomiya's Steering Techniques are assigned to defeat Yoichi. One of the brothers release a trained bird to attack the gang, which causes Yoichi to embarass everyone. Everyone goes into the water to play with the exception of Kagome. When Ibuki questions her, Kagome runs into the forest. Masashi-kun follows Kagome in pursuit. Kagome falls down a cave and breaks her fall by landing on top of Masashi-kun, who earns himself a bruise. Kagome tells Masashi to close his eyes and she dresses his injury with cloth. After a while, the rest of the gang searches for Kagome and Masashi-kun. Meanwhile, Masashi-kun and Kagome rushes out an exit to the cave only to find out that it leads to a ledge on a cliffface. Masashi-kun falls and manages to grab on to a tree branch but soon relinquishes his grip. The gang catches up to Kagome and Yoichi dives into the water to save Masashi. At that moment, the two brothers greet the gang on surfboards, and they challenge Yoichi to fight. Angela throws Yoichi a bokken, which lands away from Yoichi, and Chihaya throws Yoichi a life ring. Kagome dives in the water to save Mashashi-kun and throw the bokken to land in Yoichi's hand. Yoichi defeats the brothers with his swordplay. It is revealed that Kagome's refusal to participate in water activities is due to her embarrassment about her budding breasts. She continues to bind them with cloth.

Due to the Saginomiya siblings' medicine, Ibuki's mind has reverted to one of a 4-year-old's. Yoichi and the Ikaruga sisters have a hard time dealing with Ibuki's sudden change. Her refususal to acknowlege Kagome's existance and her clumsyness makes her a burden to those around her. A far cry from the authoritative person she once was. Ukyou and Sakon arrive at the dojo with the proposal and trial of the Ikarugas to live like a "first-class celebrity" for Ibuki. Meanwhile, Washizu and Torigaya finds Ibuki lying face-down in front of her dojo. Washizu buys Ibuki new clothes and play with her at a park. Ukyou forces Yoichi to learn swordcraft with Angela. At the same time, Ibuki is kidnapped and Washizu is stunned by the Saginomiya. By the end of the day, the novelty of the celebrity lifestyle has worn out. Chihaya and Ayame discover that Kagome is missing. A short search around the house leads to Kagome's room. They find Kagome in her room, crying while hugging a broken doll. This gives Yoichi, Ayame and Chihaya initiative to find Ibuki. Yoichi tells Angela to wait for him. Yoichi, Ayame, Kagome and Chihaya leave the dojo in search of Ibuki. Meanwhile, Tsubasa finds Washizu and carries him to a hospital.