Two popular girls, Daiyu (meaning Black Jade) and QuiYue (Autumn Moon), in an outstanding private school are rivals ever since they have met eachother. They and their followers show-down everyday in their school grounds and their hearts are cold and full of jealousy. However, Daiyu started to change after she found herself falling for a popular boy in another school, Shun (Legendary Ruler) and their relationships gradually changed from just family friends to higher relationships. But....what will happen if Daiyu saw him with QuiYue? Will a hard battle begin on the school grounds?