Each person can go in only one regular club, which means each regular club has about 5–7 people each. Depending on the popularity, which is determined by the result of the prior survey, clubs are divided into three groups: Ga group, Na group, and Da group. Da group is the most popular group. Regular club selection is done over three days; Ga group on the first day, Na group on the second day, Da group on the third. The following list shows the list of all regular clubs in 2018.