Xie Xuechen, the swordsman of the Nine Heavens Immortal Realm, held the Frost Ming Sword and uprightly defended the way. He destroyed the killing array alone in the battle between immortals and demons. He was secretly plotted by the senior officials of the Immortal Sect. His spiritual power was overdrawn and he was captured alive by the demons. Yu Zhaozhao, a saint from the nine-tailed cat demon tribe, whose bloodline is mixed with humans, cats, and ancient demons, is good at psychological games and setting up puzzles. She rescued Xie Xuechen from prison and put him under house arrest in Moyuan Liuli Pavilion.
The two form a two-way game: Xie Xuechen sticks to the right path and is proud to pursue the man-made conspiracy behind the war between immortals and demons; Yu Zhaozhao pretends to kill his Taoist heart, but in fact uses him to solve the mystery of the demons' seals in the past. In the process of probing, pulling and solving puzzles, the two tear apart the hidden desires and sins of the immortals, demons, and hidden mortals.
