Secrets of the Nine-Storied Underground Palace

A secret treasure kept by the Burial Mage triggered a rebellion a thousand years later. What is the ending? The weird and unpredictable nine-story underground palace, the incredible underground world, and the unknown thousand-year-old monuments. What is hidden behind the unsolved mysteries buried by history? The efficacious contract between humans and ghosts, the terrifying evil curse, what did they see at the time of life and death? Why would you rather die to find that mysterious thing? Treasures and immortality, what do they want most? A series of mysteries just waiting to be revealed! Please take a look - the nine-story underground palace of secrets! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.