Tiesuo Nanxun

A fire broke out at midnight and half the city was about to burn. Outside Nanxun Gate, six hundred people crowded together like a tide. Behind them was the fire that swept through them. In front of them was an iron gate with the words "Those who open it without permission will be killed." Chen Gengnian has been guarding the gate for nineteen years. He remembers every brick of the city, but he never thought that one day, he would decide whether this gate should be opened.