Great Qin in a Box

Yang Xiaotian is a doctor specializing in back and leg pain, and he runs a small clinic. One day, he was giving a massage to a wealthy woman. To thank him for his excellent skills, she gave him a mysterious glass box. It turned out the glass box held a world of its own. Inside were mountains and rivers, along with buildings and residents. The world in the box was in the late Warring States period, in the pre-Qin era. After some research, Yang Xiaotian discovered that he had become a celestial god in the world inside the box.