The beautiful ocean is polluted, and the mermaid royal family uses all the royal blood to purify the ocean. However, the sources of pollution have not yet been eradicated. The arduous task of clearing the sources of pollution and protecting the ocean falls on the newly born little princess of the mermaid tribe. Before the disaster of the ocean comes, Xiyan must find all the descendants of the gods to quell the war. On the way, many thrilling things and unexplainable emotions occur.
