Six thousand years ago, turmoil broke out in the fairy world, and the demon king Chang Liao also disappeared inexplicably. Feng Chiyan, the God of Heavenly War, sealed the Wuchen Flute in Nanze Zhuangu and fled to Jiutan Mountain not long after.
Not only can the Wuchen Flute be transformed into a sword, possessing supreme power, but the cave in the flute also blocks all evil spirits. Once it escapes, life will be ruined.
However, the seal set by Feng Chiyan only lasted for six thousand years. After six thousand years, the seal was completely eliminated.
In order to avoid the Wuchen War six thousand years later and prevent all evil spirits from escaping and harming the people, the great goddess Nuwa used the sea python pearl to absorb the essence of the ten-thousand-year full moon, created a fairy spirit, and gave it to Shui Lord Zhurong. When the fairy was born, she became an adult. Nuwa named her Xianyue and became the daughter of Zhu Rong. After Zhu Rong's death, Zhu Xianyue became the new Water Lord of the Four Seas, carrying the mission of purifying all evil spirits.