Tong Yan, a young man from the outer district, awakens the power of a mysterious mask in the darkness while protecting his younger siblings. He refuses to believe in fate and fears no powerful forces. Acting under the name of an assassin, he fights to protect those he cares about. In a world where order has collapsed, he builds a place where the weak can stand on their own. Money, power, family, and betrayal come one after another. Tong Yan defies the odds at every turn, all so that those around him can live with dignity. But when the Black Mask truly awakens, he discovers that the blade of fate has long been pointed at him.