Eunji is a cheerful and a kind girl. She has two bestfriends, Na Eun and Chorong. They study in the same school. Daehyun, Himchan and Taemin are also their friends. The story start with Eunji likes someone which is her senior, Sunggyu. Sunggyu is not a friendly type of person. So, Eunji try to be friend with him and Sunggyu start to like her. At the same time, Daehyun likes Eunji too. But, something happen that make Daehyun stay away from Eunji. What is it?