Three centuries of slumber are over. In the mist-shrouded town of Tingjiang, an ancient terror stirs—the Miasma Mother awakens. A chilling plague spreads, petrifying flesh, corrupting sacred herbs, and twisting life itself into grotesque parodies.
Bound by a bloodline curse older than memory, three descendants find themselves on the front lines: Cai Qingluan, the pragmatic wielder of a cursed Miao Dao, forever marked by the scent of sulfur; Meng Xuanye, haunted by a chillingly prophetic petrified eye; and Zhang Feidie, the 'Butterfly Marked' girl whose strange birthmark pulses with a terrifying power the Miasma Mother covets.
Guided by the silent guardian Hong Jiu, whose throat was scarred by ancient rituals, they must unravel a 300-year-old conspiracy hidden within cryptic diagrams, forgotten tombs, and the whispers of the encroaching purple fog. Betrayal runs deeper than blood, the 'seal' might have been a cage all along, and the key to survival lies locked in a horrifying truth about their ancestors' sacrifice.
Can they master their inherited burdens and decipher the deadly secrets before the Miasma Mother claims her vessel and drowns Tingjiang in a tide of petrified despair? The clock is ticking, and the mist hides more than just monsters...