This is similar to the rise of takeaway. Nowadays, college students have their own things to do slowly. Maybe he suddenly wants to eat while playing games, but it is not convenient to leave. You can deliver it to his door. This service concept is actually a manifestation of enhancing service awareness. I met many such situations when I was at school. At ten o'clock in the evening, I will think of the drumsticks in the corridor. Send a message with super legs or something.