During the Jingkang period, Bianjing was in crisis. Ordnance Supervisor Chen Yanzhi was appointed at the critical moment and shouldered the important task of reforming the armor. Facing rough steel, tight time, and picky officials, he could only immerse himself in the hot workshop, forging and quenching again and again, struggling to pursue the sharp dawn that related to the destiny of the country. This is not only the tempering of skills, but also the forging of the tough backbone of an era.
