In 1911, after avenging his master Huo Yuanjia, Chen Zhen dedicates himself to the revolutionary cause by joining the Tongmenghui. He is assigned to investigate secret collusion between warlords and Japanese forces within the Tianjin foreign concession.

An ancient demon is reborn after a hundred years, intent on uniting the three realms under its rule. Disciples of the Celestial Master Sect rise up in resistance. In its final moments, the demon transfers its soul into the body of the sect's future leader, Wang Xian Zhi, waiting for the right moment to return. As an adult, Wang Xian Zhi sets out to suppress the demon's power. Alongside his close friends Zhu Yan and Xiao Ling’er, he journeys to Banbu Duo in search of the legendary artifact that can seal the demon - the Supreme Heavenly Tome. After enduring countless hardships, the trio finally reaches Wangchuan, only to face an even greater threat. Jiang Fang Mu, driven by his desire to claim the position of sect leader, summons a deadly enchantress to eliminate them. Once again, the three find themselves in grave danger. Will their quest for the Heavenly Tome be able to continue?

The film tells the story of an accidental soul exchange between a father and a daughter who are separated by many distances, and gradually eliminate the barriers and understand each other in the process of pursuing each other's dreams