The St. President School is widely recognized as a prestigious educational institution, and its most popular social group is the affluent Yuukan club. The club holds significant sway, with members such as Bidou Granmarnier, Shouchikubai Miroku, Kenbishi Yuuri, Kikumasamune Seishirou, Hakushika Noriko, and Kizakura Karen participating in venturesome activities not only to entertain themselves but also to safeguard their fellow students.