Deep in the Longcheng Night Market, Su Wang's street stall always displays some strange things: the incense of the past life that can transcend the souls of the dead, the Netherworld Cauldron that can control the house and ward off evil spirits, and even a strange contract that exchanges ten years of life for instant wealth.
No one knows that this poor student who is heavily in debt holds a [Causal Exchange System] in his hands. Every transaction weaves a chain of cause and effect, and the "karma value" earned can be exchanged for cultivation techniques, fragments of spiritual weapons, and even a glimpse into the past and present.
Helping an old lady to save an innocent soul, but she gets involved in the shady story of a wealthy family's sacrifice; changing a ghost-expelling talisman for an internet celebrity anchor accidentally breaks the urban disguise of a cultivator; even selling an inconspicuous dragon scale attracts the pursuit of ancient ferocious beasts...
When the wave of spiritual recovery quietly swept through modern cities, and when cultivators, evil cultivators, and people with supernatural powers began to secretly trade in the corners of the night market, Su Wang discovered that what he was setting up was not a street stall, but a hub connecting the outside and inside worlds.
"This is an incense stick. Do you dare to tell me where the body is hidden?"
"That blood jade pendant can exchange for your daughter's life, but it will have to endure three lifetimes of love calamity. Do you want to exchange it?"
From a poor boy heavily in debt to an urban stranger who controls cause and effect, Su Wan climbed up the cause and effect chains, but gradually discovered that he was already the center of the cause and effect vortex, and the mysterious street stall system seemed to hide the ultimate secret of spiritual energy recovery...
