Mysterious Recovery: I Have the Underworld System

This is a world of mysterious resurrection. Hell is empty, evil spirits are in the world! The male protagonist has been fighting monsters for many years and finally upgraded from a little kid. "Ding! The Yin Qi pool is full. Do you want to upgrade?" "Upgrade." "Please choose an upgrade route." "What's the route?" "1. Yin Ghost Envoys: Ghost King, Day Parade Envoy, and Night Parade Envoy." "2. Soul-binding envoys: black impermanence, white impermanence, bull head, horse face." "3. Demonic messenger: leopard tail, bird's beak, fish gills, wasp." "Haha, the Soul Holder, Bai Wuchang!" I said they are gods, they are gods, not ghosts and gods, do you understand? ——A certain arrogant girl This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.