Unemployed young man Chen Mo unexpectedly inherits the general store at No. 444 Huangquan Road, becoming the sole designated supplier between the worlds of yin and yang. By day, he scours the human world for soon-to-expire potato chips. By night, he becomes an interdimensional merchant, selling ghosts the comforts of everyday life. From expired snacks to Yiwu trinkets, from helping a Republic-era female ghost catch up on her favorite shows to peddling waterproof phone cases to water ghosts, he uses streetwise ingenuity to resolve the dead's lingering obsessions. But he gradually discovers that his previous life was somehow connected to a loophole in the reincarnation System...