Yun Jin, the owner of an antique shop, specializes in dealing with all kinds of strange things related to monsters by relying on the "Return of Ten Thousand Monsters to the Ruins" and the magic weapon "Bone Mirror" left by his master.
The business in the store was bleak, the accounts were running in deficit, and they had to deal with the yarrow man who loved to collect debts. Fortunately, there are always strange and weird businesses coming to your door: a celadon vase that can sing "The Peony Pavilion", a haunted house with a female ghost from the Republic of China hidden in the wall, a monster that steals shadows in the subway...
Every time he dealt with something strange, Yun Jin had to use a bone mirror to trace the past of the monster, and then find a way to solve it, while making some money to make up for the shortfall. In the process, she slowly discovered that the cause of her master Ming Zhugong's death was not simple, and the disappearance of her senior sister Qingyuan was also full of doubts, and it also involved powerful opponents like the painted bone demon Liu Junyan.
As one weird incident after another was solved, Yun Jin collected more and more monsters, and the "Return of Ten Thousand Monsters to the Ruins" gradually became complete, and the secrets about her master and sister, as well as her own "Human Zhu" life experience, also came to light little by little.
