I'm Working as a Sleep Tester in a Haunted House.

Summary

The story describes a terrifying encounter with the 18 Layers of Hell, a supernatural realm where souls are punished based on their sins. The protagonists narrowly escape a dangerous situation involving an elevator and mysterious supernatural entities. They learn about Underworld messengers (Yin Chai) who manage souls after death. During their escape, a massive claw attempts to drag the main character into the hellish realm, but his companions use a blood-based technique to fight off the supernatural threat, ultimately causing an explosion that renders everyone unconscious.

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