Modern player Lin Chen transmigrates into the world of immortal cultivation, reduced to the lowest-tier sword slave with a Soul-Devouring Gu implanted in his body. In thirty days, on the full moon blood sacrifice, he will be devoured to death by the Gu worms. Awakening the Ad-to-Power System, watching ads grants him ten minutes of temporary abilities with a three-day cooldown. Relying on his gaming memories, Lin Chen endures and survives in the bottom-tier herb garden, getting to know Old Jiangtou, the mute boy Xiao Shitou, and others, while maneuvering among sect factions. Fighting against the countdown to death from the Soul-Devouring Gu, he collects clues, contends for sword bones, refines Gu Spirit Pills, and opposes the Gu mother and the dark undercurrents of the sect. From a sword slave at everyone's mercy, he breaks through destiny step by step and protects those around him.