The ancient heavenly demon is reborn after a hundred years, attempting to unify the three realms. The disciples of the Heavenly Master Way fiercely resist. As the heavenly demon is on the brink of death, it captures its primordial spirit into the body of the next leader, Wang Xuanzhi, waiting for a chance to be reborn. As an adult, Wang Xuanzhi, , in order to suppress the power of the heavenly demon, goes with his friends Zhu Yan and Xiao Ling'er to Banbuduo to find the demon-suppressing treasure, the Supreme Heavenly Book. After enduring countless hardships, the three finally arrive at the Wangchuan River, but a greater crisis appears before Wang Xuanzhi, . Jiang Fangmu, in order to seize the position of the sect leader, summons a female demon to annihilate them. The three fall into crisis once again, and whether the path to find the Heavenly Book can continue remains a question.