In order to avoid the dispute over the leadership of Shushan, the eighteen-year-old purple-clothed disciple Wu Zhen took the most precious treasure of Shushan, "The Book of Subduing Demons", away from the Fairy Mountain. Before leaving, the Master, who was about to ascend, meaningfully asked him to seek the truth in the world, so Wu Zhen, who had a loose nature, began his travels in the mortal world.
In the struggle to seek the so-called truth among humans and demons, good and evil, love and hate, integrity and despicability, the simple understanding of eighteen years has been gradually disrupted in the world of mortals. To subjugate demons and eliminate evil, to protect the Tao, "Demon Spectrum" is getting thicker and thicker, but Wu Zhen's mood is getting heavier and heavier...
Who is who and who is wrong, who loves and who hates, let's see where Ziyi Wuzhen will go~