Sungjong is an average teenager going into highschool, except for the fact that he has 6 older brothers who are wildly popular. He loved his brothers and never fought with any of them, but he doesnt want be known as the 7th brother. After a couple of months of his first year, he receives an acceptance letter from a strange school called 'MA'. Although he doesn't remember applying to this school in the first place. As Sungjong reads the letter it tells him that they will give him a