Ghostland: Beginning Battle Royale

[No system, strict logic, brainy, no routines, good at filling in pitfalls] College student Zhang Qingyi was trapped in a hotel while traveling and was chased by ghosts in the middle of the night. He found out the rules of killing and escaped in a thrilling way, but was trapped in the tiger's mouth again? An agency that specializes in dealing with evil spirits. Ghost weapon, ghost realm, curse. Clown, Rain Man, Ghost Fetus, Eighteen Levels of Hell, who will save this world? My name is Zhang Qingyi, and I will end the supernatural era! (Borrowing the setting of Mysterious Resurrection, never plagiarizing)