The story takes place in the last years of the fictional Dasheng Dynasty, where yin and yang are out of balance and sneakiness is rampant. The orphan Zhou Poyun was stealing tribute from the dilapidated Town God's Temple in Qingwu County when he encountered a crazy old Taoist named Xuan Jizi and was forcibly accepted as a disciple. After three years of hard practice, the old Taoist passed away, leaving only a bronze coin engraved with the word "Taichu". This money can illuminate the Yin soul, command the wandering soul, and use the Yin energy to feed the Yang body, but it can also quietly trigger the resurrection of the "Nine Nether Ghost King" who has been sleeping for thousands of years. Zhou Poyun was forced to get involved in the power struggle between the human and ghost realms: on one side, the ghost-suppressing family named "Qin Tian Jian" secretly controlled by the imperial court secretly controlled the order of the Yin Division, and on the other side, the remnants of the ancient ghost sect dormant in the earth wanted to tear apart the wall of Yin and Yang. He used his mortal body to hold a copper coin as a guide, and went against his fate in the three realms of soul refining, soul nourishing, and trance, and finally revealed the secret that he was actually the reincarnation of the bloodline of the ancient 'World Keeper', and faced the ghost king's ultimate conspiracy to seize his body.
