Generations of people in Yueyong Village have lived by Moyun Sea. The villagers are friendly and help each other, and their lives are peaceful and happy.
The Sea Moon King lives in the deepest and darkest place of the Black Cloud Sea. People say that he has boundless magic power and is moody. He likes to transform into clones and come to the world to tease humans.
At first, King Haiyue just played some harmless tricks. Later, after thousands of years of loneliness and eternal life, he finally couldn't hold back and caused some trouble in Yueyong Village...
King Haiyue seduced the young girl Shuo Yue into making a bet with him. In the end, Shuo Yue lost the game. She personally pushed her only son Yu Sheng into the depths of the sea of ink clouds. From then on, she became blind and lived in the depths of the lightless forest.
Yu Sheng fell into the abyss of the sea, and all the hatred in his heart made him exchange his soul with the Poseidon, gain rebirth and divine power, become the Moyun Poseidon, and be cursed to protect "Yueyong Village" forever.
King Haiyue created the non-existent girl "Ruyue" from the void. How will Yu Sheng react to the appearance of Ruyue...