Xiao‑Bai, a white serpent spirit, is dispatched to slay the Emperor"s Taoist advisor, who has been slaughtering snakes in bulk to secure immortality and win the Emperor"s favor. Xiao‑Bai, however, is ambushed by the advisor"s henchmen before she can reach him and is overpowered, wounded. Fortunately, the demonic hairpin bestowed upon her by the Snake Mother saves her life at the expense of her memories, erasing key moments.
Xiao‑Bai awakens in the Snake‑catcher hamlet, ignorant of her true demonic nature and of the enemies surrounding her in a quiet, misty valley. She encounters Xu Xuan, the rescuer, and is enchanted by him, feeling a pull. Together they embark on a quest to uncover Xiao‑Bai"s identity and the secret of her demonic hairpin. The duo is hunted by Xiao‑Qing, Xiao‑Bai"s sister, who has pledged to the Snake Mother to recover Xiao‑Bai within three days or die trying. As Taoists, demons, and mortals collide, a forbidden romance unfolds. Their path winds through ruins, echoing with whispered destinies.
