It is best to do group buying in the same city. For example, use the gym membership card to do group buying in the same city online. Most students in the gym should come from office workers and white-collar workers who have enough time after work and pay attention to the quality of life. Then we can subdivide the market, distribute targeted leaflets and cooperate with some fitness equipment companies. The enrollment situation should be the same as that of Taekwondo Hall, but the students are a little different.