He have everything in his life,from great looks to a lot of money,always gets no.1 in class and he is a football captain,he also has a lot of friends,he is so popular at school,all girls want to date him and all boys were envious to him,he is the Kingka of Seoul High School,Yoon Doojoon.In short he is perfect

While Yong Junhyung is the school's nerd boy,spends almost his whole school life in the library and the classroom,always got bullied by other students because of his nerdy look,despised by his own parents and siblings,even have to work,to pay his own school fees,everyone hates him,his friend is only his dog,Ddoong.It's like it's okay if he don't exist in this world anymore.In short he only is a burden in this world,that's what he thinks