The Era of Controlling Ghosts

The blood moon was high in the sky and the gray mist was swallowing the world. Lu Ran, an F-grade repeater, had a very low life and was only worth a life-saving potion from his sister. When he was abandoned by everyone and was about to exchange his life for money, a system called "The Abyss" came to him and whispered: Eat them and you can get everything. But the price is that he himself is gradually becoming the most terrifying "ghost" in the eyes of the world.