“Ghosts can't be killed. They can only be traded.” This was the one rule I understood after supernatural phenomena erupted across the world. As a peddler in the world of ghosts, my shoulder pole carries supernatural objects that suppress evil spirits at one end, and the price the living pay to survive at the other. Trade half your life for a way to avoid the Knocking Ghost; give up your memories for the location of the Ghost Lake. Every deal pushes this world deeper into the ghosts' abyss. But as long as my goods can still sway on the pole, I'll keep earning humanity a chance at survival in this supernatural world.