Shen Luo (played by Guo Biting) is a kind and ordinary girl. The busy life in the big city makes her feel extremely tired, so she decides to come to the island to recuperate and enjoy a quiet and stable slow life. By chance, Shen Luo met a man named Wu Julan (played by Feng Shaofeng). Soon, Shen Luo discovered that Wu Julan was not a human being, but belonged to a very ancient race - the mermaids. Beautiful love spanned the race and occurred between Shen Luo and Wu Julan. What the two had to face was more tests and a more difficult journey than ordinary love, but even so, they chose to persist and chose to hold each other's hands forever. Every mermaid has a mermaid spirit bead on his body. This priceless spirit bead makes mermaids always ruthlessly killed by humans. In order to get the spirit bead, the greedy Zhou family master kidnapped Shen Luo and threatened Wu Julan with his life. For Shen Luo, Wu Julan was willing to give his life.