A troop of children from eight to thirteen, abandoned on an island, struggling for life in the midst of passion fueled by the differences of nationalities. A story in the style of Robinson Crusoe revisited by Jules Verne.

Naoya and Katsuhiro are boyfriends, new in their relationship. Things are uneven at first—Naoya is open and free while Katsuhiro is cautious and closeted—but nothing compares to the chaos that arrives when Asako, a troubled woman with a history of psychiatric problems, abortions, and casual sex, asks Katsuhiro to conceive a child with her.

In a Japanese school, 5 adolescent geeks join the new sport teacher and take up the challenge to take part in the synchronised swimming competition, in-spite of the mockeries of the real sportsmen.