Han Yunxi, a young man from Wumengling Valley, was burdened with the tragedy of genocide and the ancient fierce sword "Fen Ji" that accompanied him. He was later rescued and adopted by the sword-wielding elder of Tianyong City, Zhenren Ziyin. After losing his memory, Han Yunxi changed his name to Baili Tusu with the meaning of "killing ghosts and awakening human souls". Many years later, Tu Su was forced to leave his master's school due to an inexplicable injustice and traveled around the world. During the journey to find and break the evil influence of Fenji, Tu Su successively met his close friend Ouyang Shaogong, the girl Feng Qingxue from Youdu, the second son of the Fang family Fang Lansheng, the half-human and half-demon Xiang Ling and many other enthusiastic and kind-hearted partners. Looking for the elixir from the mountains... Along the way, Tu Su went through a lot of hardships to slay demons and eliminate evil. Although he was almost lost to the evil spirit of Burning Ji several times and lost his true nature, fortunately, with the help of his pure and kind heart and strong will, and with the help of Qingxue Lansheng and other friends, he overcame the dangers and resisted the erosion of the sword spirit time and time again. However, after many twists and turns, Tu Su suddenly discovered that his most grateful and trusted confidant, Ouyang Shaogong, was actually the mastermind behind everything. In order to stop Shao Gong's shocking conspiracy, Tu Su sacrificed his life to unblock the murderous sword, and fought Shao Gong to the death with fearless sacrifice, ultimately turning all joy and sorrow into ashes. And hope and the future are reborn in this fire.