Zhang Mo unexpectedly becomes the leader of the Heavenly Demon Sect. His only technique is Immovable as a Mountain. He originally intends to surrender and escape, but one misunderstanding after another throws everything into chaos. The righteous factions send a declaration of war, while the Soul Sect delivers a Blood Demon Order concealing a sinister plot. Zhang Mo plans to flee under cover of night, only to encounter Mu Chenxing, the leader of the Zhengyi Sect, fighting to the death against Blood Aunt of the Soul Sect. Both die together, and Zhang Mo is also branded with a Soul-Chasing Mark. His demonic subordinates mistakenly believe he possesses unparalleled strength and proceed to crush the righteous alliance. Forced to bear the reputation of an unrivaled demon, Zhang Mo must manage his sect while facing the ever-present threat of assassination.