In short, your school is a grayscale picture. The only thing that stands up colorful and 4D is this group of twelve hot guys. Call them Extrovert, because they are all easy-going and fun to be with. This guys is like twelve crayon in one box, all different but each one gives it's own color to their sorroundings. You and these guys were friends since...forever. Your days before you meet Extrovert seems all blurry and uninteresting, you love them all equally as a friend