Chen Lie, once a prodigy of the Chen family, had his S-rank divine artifact "Thunder God Hammer" stolen, depleting his vitality and reducing him to a waste. Persecuted by his brother Chen Qingxu and the family elders, he was pushed to the brink of death — until he bound to the "Doomsday System." The problem? It mistook the high martial world for an apocalypse: killing mosquitoes counted as "slaying zombies," renting a shack as "building a shelter," and slapping villains boosted vitality. Exploiting these bugs, Chen Lie rose from a waste — crushing bullies, exploring forbidden zones, and dominating the martial exam with warrior-level power. Hounded by the Chen family, burdened by bizarre system missions, and caught in the collision of two mismatched worlds, he wielded the Cloud-Cleaving Palm and Chen Family Mad Blade to cut through enemies, unraveling the secrets of both the high martial realm and his doomsday system — forging a path of revenge and ascension.