The Beginning Is Haunted: My Identity as a Celestial Master Has Been Exposed

[Haunted + funny + ghost hunting + cool writing + multiple female protagonists + system] Shen Chuan traveled to a world where ghost energy was revived and was bound to the Ghost Hunting Master system. Start on the road to exorcise ghosts and demons. What broom ghost, grunt ghost, snake ghost queen Medusa... It turns out that all of this stems from the ghost escape in the underworld 20 years ago... What happened in the underworld 20 years ago that led to all this?