More than 10,000 years ago, the mysterious underworld was connected to the earth. Countless demons came to the earth through the underworld. Among them, the most powerful underworld demon has been able to completely interfere with the power of the demon god, polluting reality into a dead land without any life. It can also evoke the darkest side of human beings and turn into irrational demons. Humanity's most powerful weapons could not affect the devil, and humanity was once on the verge of extinction.
During this period, there appeared among humans people who were contaminated by the power of the demon god but remained sane. Among them was a man and a woman. They were able to communicate with each other and could control the power of the demon god at multiple times. In the end, at the cost of their lives, the two sealed the passage from the Netherworld to reality and isolated the demon god from the void. However, the power of the demon god remained. There were also twelve demon god monuments left deep in the Netherworld, exuding the power of the demon god all the time.
For more than ten thousand years, people have gradually mastered the method of communicating with the power of the devil. A few people can communicate with the power of the devil in reality, and such people are called psychics.
Su Yunxi, a psychic girl from the mountains, embarked on a journey to find the murderer of her master and determined to become the most powerful psychic. This is how the story begins.