Akemi Obata

A girl named Haru Asagi works as a maid for the Miyanomori family, which is headed by one of Japan's most powerful magnates. However, the family head suddenly announces that he is retiring, so one of his six sons must assume control of the family.

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.

A girl named Haru Asagi works as a maid for the Miyanomori family, which is headed by one of Japan's most powerful magnates. However, the family head suddenly announces that he is retiring, so one of his six sons must assume control of the family.