Eighteen years ago, the City of Fire encountered the invasion of the Nine-Tailed Celestial Fox, the Lord of the City Qin Yuan, in order to protect all the common people of the city and his good friend Pei Shan, sacrificed all his cultivation, sealed the celestial fox into the body of his newly born daughter Qin Xiyue, while he himself was sucked into the spatial turbulence and went missing. Before leaving, he entrusted his daughter to Pei Shan, believing that this long-time friend would definitely be able to cultivate Xiyue to grow up. Eighteen years later, Qin Yuan Nirvana rebuilt and re-cultivated in the spatial turbulence, stepping into the Martial Saint realm, returning with longing for his daughter and tearing apart the void. However, what awaited him was not a reunion, but a cold tombstone inscribed with "The Tomb of Qin Xiyue". Qin Yuan dug up the tomb and opened the coffin, and the coffin was empty.