Shimajiro, who helped an injured baby whale Kuu-chan, takes care of Kuu-chan who wants to return to her mother and keeps her in touch. In order to return Ku-chan, who was about to be sent to the aquarium, to her mother, Shimajiro rides on her back and sets out on a journey toward the southern sea.
June 24th is the day the first UFO was spotted. Around the same time, UFOs were also discovered in Japan. That's right, an unidentified Fujioka object. Why did they come, and what is their purpose... What will happen on UFO Day?
