The order is broken, and the weak eat the strong. The young boy Tong Yan wields the power of the mysterious mask, abides by the contract, and swears to protect his loved ones and the innocent and weak to the death. Faced with the exploitation of aristocratic families and the conspiracies of all parties, he led the "Shifang Tiandi" to bring order to the chaos and build a city of hope for thousands of civilians to settle down and live in troubled times. However, the alliance between the violent beasts and the mysterious fallen ones is coming. At a time when life and death are at stake, can he tear apart the night with his peerless combat power and create a truly supreme forbidden city?