This world is absolutely abnormal.
A mad immortal, a sinister Buddha, and a strange ghost: these three deities are the objects of the world's faith. In their eyes, only the Three Deities Religion is orthodox. Everyone else is an outsider.
People despise the uncanny even as they seek immortals, pray to Buddha, and beseech ghosts, utterly unaware that the uncanny and the madness stem from these very things.
At some point, a magnificent collection hall quietly appeared. But what it held was no longer a symbol of civilization and history. Instead, it was filled with madness and indescribably vile things.