The Underworld System Runs Rampant in the Yin and Yang World

The underworld is destroyed and the gates of hell are closed. Hundreds of ghosts walk at night, causing cholera in the world. Due to the chaos of the six paths of reincarnation, the underworld was destroyed. The evil ghosts in the underworld returned to the human world and harmed the common people. In order to stabilize the order of all walks of life, the heavens threw the fragments of the underworld into the human world. When you get the underworld, you will automatically open the underworld system and become a trainee ghost to capture the lonely ghosts wandering in the world. Every time you capture a ghost, you will gain corresponding experience. Once you have enough experience, you will automatically upgrade! After catching a ghost, the system will reward you with corresponding ghost coins, which can be used to purchase items in the underworld store! Two people who have fragments of the underworld at the same time, but whoever kills the other party first can get the other party's fragments of the underworld and merge them with their own fragments. After collecting all the fragments of the underworld, you can reopen the underworld and become the King of Hell! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.