Two different groups. One gang, one friendship. Haekson High, located in the northern part of Seoul, is known for their bad reputation. The only girls of the school are Hyoyeon, Yoona, Sooyoung, and Yuri. The 'Ace' Gang. They specialize in dancing, and.. fighting. The teachers at Haekson High are very irresponsible and don't bother stopping these endless fights. However behind their scary appearances, the four have been friends s