Long ago, all humans lived in the ocean. But some who longed for the land abandoned the ocean, casting off the special raiments granted to them by the sea god to adapt them to life under the sea... Though mankind was divided into sea dwellers and land dwellers, each with different ways of thinking, they were all still fellow humans, and they continued to maintain contact as time went on. Sakishima Hikari, Mukaido Manaka, Hiradaira Chisaki, and Isaki Kaname live in an undersea village, while Kihara Tsumugu lives on land. When these middle school second-year land and sea dwellers meet for the first time, their hearts begin to undulate like the tides. The youthful fantasy tale of these young people's lives unfolds in a strange and beautiful world.
I watched this a little while ago and I really liked this anime. First I just thought this going to be just some love triangle and that those kids from the ocean will be bullied or something. But it wasn't all (and actually nobody didn't bullied them. They just didn't like them much first) there was more than some love triangle even it was quit important thing in this. And this really surprised me because I didn't know whats going to happen. This wasn't predictable so that is really good thing! Even in the end there happened some stuff what I didn't really expect happen. Characters was good and I did like some of them more than others but there wasn't much characters what I actually liked really much. Still this was really good and if you like this kind of anime (drama, fantasy and romance) you should probably watch this~