How about students doing overnight express sorting part-time?

You can do it part-time. It is also a way to exercise yourself in advance and enter social work, and you can also get a certain income. But to avoid several situations, one is if. If you have a class the next morning, then tidy up and express it all night. You must be very tired in the morning. In order to avoid such time conflicts. And I have to sleep the next day after working all night. This job is not very tiring, is it? I'm just tired from work at night.