Yang Hai is the son of the sea god, a mermaid from the ocean. Because of the war under the sea that he is cursed to turn into a human, drifting to the shore near where you live. You is a human live in fishing village, who is afraid of the sea. Accidentally, you find Hai in the form of a mermaid, gradually turning into a human with two legs and bare. Because you were the one who discovered the fact that Yang Hai is a mermaid, he now follows you around to make sure you don't let his secret out.