Choi Youngjae has been ranked as a submissive since birth, the tiny blue arrow that's planted right behind his ear symbolizes everything he is to some and the amount of respect he should receive. Im Jaebum was assigned the ranking of dominate since the day he was born, on the back of his ear sits two red dots which he believes symbolizes his superiority to any submissive around. So what happens when doe-eyed and chubby cheeked Youngjae shows up for his first day of high school, only to be tormented by the senior Jaebum? What happens when they get paired together five years later?