After the protagonist Lin Xia lost her job, she took over the "Late Night Convenience Store" left by her grandfather, only to discover that this was no ordinary store at all: the "imported biscuits" on the third row of the shelf were actually energy food for goblins, the "special ice drink" in the freezer was bloodless nutrient solution for vampires, and the hidden compartment under the cashier contained a "human disguise" that could temporarily hide evil spirits - and the grandfather left only one sentence: "You must close the door before 3 a. M. Every day, and don't talk to people wearing black windbreakers."
On the first day of opening, Lin Xia made a mistake with the product: she sold the "phantom powder" for the fox demon as blush to a human customer. As a result, the customer returned the product the next day with the appearance that "half of the face is the internet celebrity model and half of the face is the original face", thinking it was a "cosmetic quality issue";
The "regular customers" who come to buy things late at night each have their own quirks: the wolf boy buys ten packs of "beef jerky" every time (actually special jerky, which can relieve the irritability of the full moon night), but he always forgets to bring money, so he can only use "the wolf hairs he shed" to pay off the bill (Lin Xia later used these wolf hairs to make a plush pendant, which unexpectedly became the store's "treasure");
The "man in black trench coat" that grandpa mentioned finally appeared, but the other person was not a villain, but the "household registration administrator" of the demon world. He came to urge Lin Xia to apply for a new "monster convenience store operating license" and complained: "Your grandpa owes us three hundred years of management fees, and now you have to pay it back."
