Unemployed young man Chen Mo accidentally inherited the grocery store at No. 444 Huangquan Road and became the only designated supplier of Yin and Yang. During the day, he shopped for late-season potato chips in the real world, and turned into a cross-border businessman late at night, selling human fireworks to ghosts. From expired snacks to Yiwu small commodities, from helping female ghosts in the Republic of China to chase dramas to selling waterproof mobile phone cases to water ghosts, he used market wisdom to resolve his obsession with the underworld, but gradually discovered that his previous life was related to a loophole in the reincarnation system...
