Some official letters from our company are delivered by post. The couriers in other people's homes are all Shimizu's younger brothers, while the postman in our unit is an uncle in his forties, with white hair, thin figure and dark skin, and walks very fast.

He may have worked in the postal service for more than twenty years, and his daily tasks are very heavy. Every time I see him, he is covered in dust. And he is the person I have met the most in this city, which shows how high his appearance rate is.

Working in the post office, his job is relatively stable. Although he is not nervous about losing his job, he is extremely serious and responsible for his work. He won't neglect his customers, because his job is more stable than others.

Compared with other courier companies, there may not be so many express mails, but this does not mean that he is more relaxed than others. Because, in other courier companies, each courier is only responsible for a small area of express delivery, while in postal companies, each courier is responsible for a much larger area. So he is so dark and thin, and his biggest feeling every day is probably the same as that of other couriers, that is, he is tired.