Tong Yan from the outer city, in order to protect his younger siblings, awakened the power of the mysterious mask in the darkness. He does not believe in fate and is not afraid of power. He performs guardianship in the name of a killer and personally establishes a foothold for the weak in a world where order has collapsed. Money, power, family, and betrayal follow one after another. Tong Yan goes all the way against the odds, just to let the people around him live with dignity. But when Black Face finally woke up, he realized that the knife of fate had already been pointed at him.
