Shino, a troublesome cousin, visits Kotarou. Angry that her father has a business trip, Shino goes to the amusement park with Kotarou and his friends. Kotarou and his friends pass out being unable to handle Shino and Misha's tremendous energy. Hearing that Shino's father actually had to go to the hospital, Shino runs away. Without hope finding Shino, Misha flies up into the air with Kotarou and finds Shino, crying to go to the hospital. Misha transports Shino to the hospital.