Crossing the Boundary Between Yin and Yang, I Command Ghosts and Gain Infinite Lifespan

The extraordinary beings who wronged me in the past, no matter what path you follow or what sequence you're in, not one of you will live! Ruthless slaughter! Vengeance at last!

The Soul of Nature, the Path of the Underworld, the Way of Curses, the Path of Illusion, the Way of Divine Oracles, the Way of Filth, the Way of Ingenuity. What? You say I'm a lone practitioner? I don't belong to any path, yet can set foot on the lowest sequence of every path? Then there's only one thing to do: fight!

In a world where ghostly energy has resurged, the protagonist was killed by the supernatural. After being reborn, he planned to stockpile some ghost money and become a tycoon.

But after binding to the Killing System, he has to hunt relentlessly to earn more years of life. With a store that lets him trade his lifespan for supernatural artifacts, why bother stockpiling ghost money? He'd better hurry up and collect powerful artifacts.

What? I'm a lone practitioner who can set foot on any path?

He'll take revenge before those supernatural beings grow into Ghost Kings! If I don't kill them, I'll make them my contracts.