In the underwater village of Shioshishio, lives a group of friends who have been together since they were little. These children are Manaka, Hikari, Kaname, Chisaki and Kyoko. Kyoko, our protagonist of this story is a sarcastic girl with a cold personality, but still cares about her friends. When she meets mysterious land person Tsumugu feelings begin to emerge in her heart, and she realizes the relationships she had with her friends, will never be the same...All Rights Reserved