In the "Xinchang City" where technology and mysticism are intertwined, the city is shrouded in an invisible "sin barrier". The energy of the barrier originates from the "Seven Deadly Sins" in the human subconscious. A hundred years ago, seven "Containers of Sin" took the initiative to accept the power of sin and used themselves as a lock to seal the "Beast of Original Sin" that wanted to destroy the world. However, due to the erosion of the power of sin, they became half-human and half-demon beings, and were called "Sin Lords" by later generations. Now that the seal has loosened, the aura of the beast of original sin has leaked, and "sinization incidents" have occurred one after another in Xincang City - ordinary people have been swallowed up by a certain type of sinful power and transformed into "sin slaves" who have lost their minds.
