Liu Changsheng, a brave and fearless soldier, sacrificed himself to cover the evacuation of important national scientific and technological talents while performing missions abroad. His heroic deeds moved the world. After his death, the King of Hell valued his integrity and bravery and appointed him as the inspector of the underworld.
At this time, evil spirits are raging in the world, and lonely ghosts, resentful evil spirits, harmful monsters and zombies are rampant. The Underworld issued an emergency order requiring the underworld to be cleared within fifty days, otherwise the King of Hell will be locked up in a small black room. The King of Hell had no choice but to ask Liu Changsheng for help. Liu Changsheng refused at first, but later bargained with the King of Hell and received three magic weapons and three opportunities for help. The King of Hell also taught him the power of 10% of the netherworld and the secret book "The Infinite Way of Taoism" to help him understand the primary realm.
After completing his studies, Liu Changsheng returned to the human world. He first went to Lijiacun and met Li Wenhua's spirit body stranded in the human world. He helped him recover his body and bury it, so that he could reincarnate with peace of mind. Later, in Qi'an City, the eldest daughter of the Qian family was taken over by an evil spirit. Liu Changsheng relied on the Taoism and magic weapons he had learned to start a thrilling battle with the evil spirit. He finally succeeded in subduing the female ghost and rescued Miss Qian, which also enhanced his own merit. He keeps moving forward on the road of subduing demons and slaying demons, shouldering the heavy responsibility of protecting the peace of the world. Thrilling adventures await him, and the future is full of unknowns and challenges.