Lin Yu, an 18-year-old mountain boy, was born in pure Yin and Gui water. He was born with a fear of fire and wood, and his fate was unstable. As soon as he was born, he suffered a disaster that destroyed his family and his entire family. Following his master's orders, he went down the mountain to look for the destined noble person who could protect his water life. Little did he know that from the moment he stepped out of the mountain gate, he had entered an eighteen-year deadlock surrounding the ancient artifact, the Dingshui Bead.
When he first entered the world of mortals, he encountered fire evil stars and wooden traps one after another. His work was overturned and he was in constant danger. However, he also unexpectedly met cultural relic restorer Su Yan, straightforward fire girl Zhao Yan, mysterious senior sister Chen Jinyao and others. As a series of strange events occur, the truth behind the Lin family's annihilation, the cause of their parents' death, the master's last words, and the real secrets of the Dingshui Pearl are revealed - he is not a disaster star, but the last water-bound successor of the Lin family, and the origin of the Dingshui Pearl that can balance the five elements of heaven and earth is hidden in his body.
The villain Zhou Sen, who covets the artifact and attempts to change his destiny against nature, and Chen Feng, the inner ghost who betrays his master due to jealousy, are closing in on him step by step and setting up a killing array. Lin Yu struggled to grow up between love and hate, life and death, and good and evil. From a mountain boy who only clung to the mutual restraint of the five elements and was timid and secluded from the world, he gradually understood the true meaning of the mutual interdependence of the five elements, good and evil are rewarded, and protection is greater than killing.
In the end, he and his companions used the Five Elements Unification Formation to end eighteen years of grudges and protect the artifact, the town, and the people they love. Guishui, who once wandered without roots, finally found his own shore in the world of fireworks, and lived his life as a light that illuminated a place of stability.