In the seventh year of the Ming Dynasty, Shen Lian (Zhang Zhen), a Jinyiwei of the Northern Pacification Division, killed his colleague Ling Yunkai (Wu Qiang) in order to save the painter Beizhai (Yang Mi) during a mission to eliminate the rebels. After that, on the one hand, he had to get rid of the doubts and investigations from Lu Wenzhao (Zhang Yi) and Pei Lun (Lei Jiayin), and on the other hand, he set fire to the Jinyiwei Experience Division under the threat of a mysterious woman. Caught in the turbulent times, Shen Lian and Beizhai fell in love, but they fell deeper and deeper. Behind all this, a huge conspiracy is being secretly laid out. All living beings are like ants trapped in the Shura Field, and the battle of the reverse scale is about to break out...