That Time I Met a Dark Demigod Demon Hunter

A hero from another world, transmigrated there for a second time, and his companions receive a divine oracle and travel to a cursed world. An unknown deity asks them to lift the world's curse and save it. After a series of murders committed by a gold-rank demon hunter, the heroes gradually uncover the curse's source and find the answers they seek.

A gold-rank demon hunter wielding the powers of the underworld suddenly begins slaughtering humans in large numbers, and crosses paths with heroes from another world. The heroes believe this demon hunter is the source of the curse. To stop his killing spree, they spread out across the world to hunt him down.

Why does it have to be 100 words, waaaah!

This novel and its characters are entirely fictional. Any similarities are purely coincidental. Do not imitate.