sm high school have 2 buildings ,buildings A and B ,but doesn't know why buildings A full of smart student while building B full of lazy student . building A have a prince also called princess too ,a perfect student ,every body like him both girls and boys even their teachers too , lee donghae is the perfect student,prince,and princess from building A ,he well known with his personality ,handsome face even beautiful too,rich ,smart brain,cool dance,cute, all of kindness while