In order to save his sister, Shen Qingye became a traveling debt collector. There is a mysterious contract mark on his left hand, which can see through the most bizarre karmic debts in the world. From the memory-devouring hospital to the capitalized ghost auction, he plays games with out-of-control rules and struggles between lies and costs. But he gradually discovered that every debt he recovered was dragging him and his sister into a deeper vortex of cause and effect...
