A sudden dislocation of time and space threw the modern, calm and restrained Ma Xuanran into the turbulent foggy city of the Republic of China. He was forced to sneak into the dark situation with a false identity, dealing with military affairs, chambers of commerce and underground forces. Tian Wanqing, the only one who could see through his disguise, was like an ally and a hunter. The two went from testing each other to joining forces to break the situation, and in the murderous pursuit, they tracked down a shocking conspiracy that could rewrite the fate of the city.