krystal jung , Jung family's  youngest daughter , the owner of the richest and famous in  korea love myungsoo so much can;t to do aegyo and express feelings

kim myungsoo, prince of Shinhwa university , love to tease krystal , krystal boyfriend ! kim family youngest son ...can't do something romance for krystal .

Choi Minho , new transfer student of shinhwa university , flamming charisma ! choi family older son love krystal and try to make krystal and myungsoo break up