The setting is the Ogasawara Islands, a World Heritage Site.

Takizawa Yutoshi visits the Ogasawara Islands in pursuit of his former girlfriend, Tamaki, in order to put an end to their relationship, which has naturally disappeared. He goes to the islands to put an end to the relationship that has spontaneously disappeared. On his way to see Tamaki at a hotel on the mountain, he meets a girl cowering on the side of the road, and the story begins.

Shy and petite Eri and her destination is a radio station on the verge of collapse. There she finds her former lover, Tamaki, who has been living as a recluse. Yuuri and Tamaki are perplexed by the gap between their past and their present. Eri is pursuing her dreams, but her family is against her.

On a southern island with abundant nature, the hearts of boys and girls intersect.