Lin Xiaodi, 24 years old, takes over the courier station left by his brother-in-law. Business is bleak, the landlord is raising the rent, and it is on the verge of closing down. By a chance scan of a QR code, he binds the Rejection Return System. Parcels rejected by customers can actually be transformed into cash, skills, and even mysterious items. The station owner who should have persuaded people to sign for deliveries now looks forward to rejections every day. Zhao Maimai the shopaholic, Qian Jinshēn the obsessive-compulsive accountant, and Sun Shenmi the elusive person bring all sorts of bizarre reasons for rejection. However, as pieces of information gradually emerge, the truth behind the station, the true identity of his brother-in-law, and Lin Xiaodi's true identity are stepping out into the light one step at a time.