Lin Xiao, an orphan from the ancient village of Gu Ming, carries the bloodline of an ancient divine tree, yet it has been sealed since his childhood. Rescued by his benevolent master, he joins the Yunfeng Sect. However, because of his inferior spiritual roots, he is reduced to a lowly servant, enduring endless bullying and ridicule from his fellow disciples. Haunted by the blood feud of his village's massacre, he is provoked into forcibly breaking through his cultivation realm and nearly suffers demonic deviation. Fortunately, his master intervenes and saves him, but Lin Xiao remains constrained by the limitations of his innate talent. During an accident, he falls off a cliff and stumbles into an ancient secret realm, where a thousand-year-old white ape recognizes him as its master. There, he obtains the Myriad Ages Demon Staff, and his spiritual roots undergo nirvana-like rebirth and awakening, allowing his cultivation to advance at an astonishing pace. As the sect's great martial competition reveals the extraordinary power of the demonic staff, Lin Xiao becomes hunted by both righteous and evil factions. Though he repeatedly teeters on the brink of demonic transformation, he steadfastly guards his original heart. Through life-and-death battles, he continuously evolves, preparing to confront the impending ancient catastrophe from beyond the domains.