It has something to do with the company chosen by the sponsor. . . Some of them may be prepared by themselves. But some of them are issued uniformly. When I was at school, some students participated in the promotion of honey grapefruit tea drinks, that is, a small booth was set up next to the restaurant for students to taste, and then gifts were given to promote the products. At that time, I wore uniform hair, including stockings, skirts and short sleeves. At that time, she complained that stockings were heavy and ugly. . .