The story is set in an alternate, dark fantasy version of ancient China. The protagonist, Lang Wufeng, is a "Red Lotus" agent—a secret assassin working for the imperial court. Their mission: to hunt down and eliminate "demons" (Yao) that threaten the mortal realm. However, the line between good and evil is deliberately blurred. The demons are not always monsters, and the state is not always just.
Unbeknownst to her, an immortal named has been watching over her for a thousand years. tam thien nha sat tap 1 vietsub