Old Obsession: The Curse and Its Master

[Not a wish-fulfillment story + Single male lead + A touch of cosmic horror]

An unsolved case, a writer, another world cut off from ours. When did the world change?

When the Rulers descended, history went up in flames.

When the curse spread, everything moved toward its destined end.

The only thing we fear is fear itself.

The only thing we long for is that glorious age...