Ghost Domain: A Deadly Escape from the Start

[No System, tight logic, smart protagonist, no tired tropes, and every plot thread gets resolved]

Zhang Qingyi, a college student, gets trapped in a hotel while traveling. Hunted by a ghost in the middle of the night, he figures out the rules behind its killings and escapes by the skin of his teeth, only to jump from the frying pan into the fire?

An organization dedicated to dealing with vengeful ghosts. Ghostly artifacts, ghost domains, curses.

The Clown, the Rain Man, ghost fetuses, the Eighteen Levels of Hell. Who will save this world?

My name is Zhang Qingyi. I will bring the supernatural era to an end!

(Borrows the setting of Mysterious Revival, but is absolutely not plagiarized)