Introduction: Chang'an City was instantly submerged by a sudden thick fog, and people fled in panic. The bad guy Xiao Cheng guarded the weak prince and was trapped with the commoners, waiting for the fog to dissipate. However, the thick fog did not disperse as expected, and the people who walked into the thick fog never returned. The shocking monsters in the thick fog gradually revealed their hideous faces. Xiao Cheng fought desperately to protect Chang'an.