The protagonist, Lin Feng, is a 22-year-old delivery boy whose parents died young and is dependent on his sister Lin Xiaotang who suffers from congenital heart disease. He delivers food during the day and does odd jobs at night to earn medical expenses. Because of his dull personality, his salary is always withheld by the platform. However, he lives a difficult life but is always kind and tenacious. When he was delivering orders, he met street singer Akai by chance. Inspired by him, he began to use his mobile phone to record "the real daily life of delivery people." He unexpectedly became popular on the Internet. He counterattacked from "the worst delivery boy" to "city temperature recorder" and finally founded a charity live broadcast brand to help farmers, changing his life.
