Programmer Li Jiangyuan transmigrates into the cultivation world and becomes a cybernetic sword cultivator corrupted by an Outer God. His mechanical implants and flesh-and-blood dantian tear each other apart, while fragments of his memories conceal the truth behind a cloning experiment: he is Vessel No. 17, built to house an Old God. Rewriting sword arts with binary code and devouring Lovecraftian monsters to repair his body, he discovers during his ascension that the immortal realm is actually an Outer God's digestive tract. When his soul fusion reaches 99%, he grips his quantum sword. Will he become a shell for an Old God, or transform into a virus and destroy the entire cyber-cultivation civilization?