Chen Bu'e transmigrates into a martial arts world and lives with his elder sister, relying on each other for survival. At the very beginning, the Nine Regions Demon Sect raids their home and kidnaps his sister. Locked inside their house for seven days and seven nights, he starves to death. Fortunately, his soul does not become a corpse after death, and he becomes the only supernatural entity in the martial arts world: a starving ghost. By eating anything connected to the Demon Sect, he can gradually grow stronger. Determined to infiltrate the Demon Sect, eat his way to power, and rescue his sister, Chen Bu'e endures humiliation while devouring seventy kilograms of evil substances every day. The poisonous herb valley, a forbidden zone where no living person can survive, becomes his vegetable garden, while the Ten Thousand Snakes Cave, from which nobody returns alive, becomes his meat farm. As this continues, the Demon Sect's evildoers gradually discover that something about him is different, and terror begins to spread. Something that is not remotely human has arrived at the Demon Sect.