On the edge of the Small Thousand World, Lu Changming, a young butcher in Qingwu Town, just wants to live until the end of the world. An unexpected "continuation of the lantern" allowed him to hold the incomplete life lantern, and also hold the "Wudu" knife of unknown origin. He practiced diligently and walked step by step into Dukou, Changsheng Sect, Si Deng Yamen, and the Wanjie Alliance, only to find that the so-called ascension to bliss was just a furnace set up by a higher being - all living beings are firewood, and the immortals are all sacrifices. Some people have been planning for thousands of years, while others are chess players. With a knife and a lamp, he asks a question for everyone in front of the door that is just one step away from perfection: What is the purpose of immortality?