I Came from the Underworld to Arbitrate Matters in the Human World

"You mean, the undead are causing trouble?" A son of the underworld who was born in the underworld with the energy of all spirits, Zhou Zheng is his name in the world of the world. It's a name, but it's actually just for the convenience of walking in the world. As strange cases emerge one after another, the mastermind behind them turns out to be from a strange world. As the spirit envoy of the underworld, Zhou Zheng launched a desperate fight with demon spirits on the pretext of investigating a murder case in the underworld!