•Weird resurgence, reality and the underworld overlap, and humans are forced into a "weird copy" to complete tasks and survive.
•The reward for the copy is ghost coins (the only currency in circulation), which can be borrowed from the "Netherworld Bank" at usurious rates (interests are compounded, and those who are overdue become ghost slaves).
•The level of ghosts: wandering soul → evil spirit → evil → fierce ghost → ghost general → ghost king → ghost emperor → ghost emperor → ghost and god → indescribable (corresponding to the human realm).
Inexplicable, confused