In the 302nd year of the lunar calendar, the "Abyss Fissure" erupted in the Kunlun Mountains in the north, and the "Abyss Demonic Qi" as thick as ink swept across the world. The spiritual energy of heaven and earth was completely polluted within three months. The spirit gathering arrays and alchemy furnaces in the traditional cultivation world all failed, and the sect's holy land became a demon puppet lair with the strongest demonic aura. Humanity has established a "Barrier Alliance" to block the spread of evil energy with a giant energy barrier. However, the barrier energy will decay by half every ten years, and now it has entered the "Last Barrier Era".
A mortal who inhales a trace amount of demonic energy will experience hallucinations, and if it accumulates for more than three hours, he will be completely demonized - his muscles will swell, his skin will become scaly, and he will become a "primary demon puppet" who only knows how to bite. Although practitioners can temporarily resist the demonic energy with their Dantian, every time they use spiritual power, they need to burn life energy and convert it into "life-burning fire" to dispel the erosion. The average lifespan of a life-burner is no more than 35 years old, and they are called "burning martyrs". At present, less than 1% of human survivors were before the war, and they are scattered in 27 large barriers around the world.
