The Rule Butcher on Awakening Day

As ineffable ancient gods invade the world, human civilization teeters on the brink of collapse. The protagonist, Su Lin'an, accidentally activates an [Eerie Life Simulator] that cannot be uninstalled. It's both a game System that lets him rewind after death and the control core of the entire chaotic world. While others struggle to survive in terror, he gathers “data samples” of the ancient gods by “finding creative ways to die” again and again, analyzes their rules, and ultimately transforms from their prey into the “final BOSS” of all things eerie.