The Underworld Returns to the Human World

The main description of this book is that the protagonist travels to a parallel world and discovers that this world is a supernatural world, where ghosts are rampant. The wilderness has long been occupied by ghosts, and living creatures can only huddle in cities that appear to be solid but may be destroyed at any time. Let's see how our protagonist comes through time travel and faces this world, how to eradicate all evil step by step and restore peace to the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.