Wan Qian, a ferocious beast Taotie who had been sleeping for thousands of years and was sealed in the artifact "Soul Calming Cauldron" by the ancient power, regained consciousness when the seal was loosened due to the turbulence of time and space. However, what she faced was not freedom, but a [thriller game system] bound deep in her soul. The system informed her that she was selected due to her "special qualifications" and must travel through 100 horrific scenes generated by the system (such as a deserted village filled with resentful spirits, an abyss hospital with twisted rules, a corrupt official's mansion riddled with karma, etc.) To complete the " Explore, "Purify" or "Devour" tasks to earn "Fear Points" and "Soul Energy", which can be used to repair her weak origin, unlock the Taotie talent, and finally accumulate enough power to break the ultimate seal of the "Soul-Suppressing Cauldron".
As a glutton, Wan Qian has the instinct to devour all things, especially negative energy and souls, which makes her like a fish in water in horror scenes. But a thousand years of slumber left her with incomplete memory, a mind almost like that of a child, and no knowledge of modern human society and the rules of the Three Realms. The system became her only guide for understanding the world and learning the rules, and also digitized her devouring instinct into tasks: the attribute panel quantified her "hunger level", "digestion efficiency", and "deterrence level"; the skill tree unlocked "mouth of the abyss", "fear halo", "karma fire devouring" and other gluttonous magical powers; the mission system constantly plunged her into more dangerous and weird scenes.
This is where the core conflict breaks out: on the one hand, the maintainers of order in the three realms (such as the priests of the Heavenly Court Inspectorate, the judges of the Underworld Judgment Hall, and the officials of the Human Supernatural Administration) cannot understand the existence of the "system" and only regard Wan Qian as a free agent.