I think about you... With regret, I miss you. Did we mean the words we said that day?

In a big prestigious school in Korea, known as Seoul High, there are students of many different kinds. Some excel at studies, some excel at music, while others excel at sports.  This story is about two best friends suddenly falling in love after a sudden encounter with two guys in their school. But love between them isn't so easy as other people step in their little 'love game', making things even more complicated...