Huo Yan, an ordinary young man who was jealous of his brothers and betrayed by his girlfriend in the real world, accidentally traveled to the world of cultivation. With no spiritual roots, no background, and no talent, he was thrown into the monster forest to die at the beginning. When he was about to die, he activated the "Grandpa Plug-in" that came with time travel - a mean-mouthed, arrogant old man with a broken soul, "Ling Yuan", who claimed to have killed gods.
Lingyuan's ability is very simple: help Huo Yan "plug in" any martial arts, martial arts, and formations he has seen, but every time he uses them, he has to pay a price - Huo Yan's lifespan. Want to change your life against the odds? Take your life in exchange.
Huo Yan had no choice. With an almost mad dog-like ferocity, he exchanged his lifespan for forbidden techniques and fought his way through the monster forest. He doesn't talk about martial arts and doesn't play according to routines. He uses whatever Lingyuan gives him and crushes all enemies in the most ferocious and wild way.
But Lingyuan hid a secret: every time his life span was consumed, the bloodline of an ancient ferocious beast would awaken in Huo Yan's body. When he consumes enough lifespan, he will no longer be a human, but a real "wolf dog" - the ancient ferocious beast, the Wolf Dog, a killing machine that specializes in hunting gods.
His fellow sects who are jealous of him, sects who covet him, and strong men who are chasing him will all become stepping stones on the road to his awakening. And what is the real purpose of Lingyuan, this seemingly harmless old man?
