Yeonjun and beomgyu have been childhood best friends since they were little kids, but unfortunately yeonjun had to move from Seoul to Busan because of his father's job which caused them to separate when they were teenagers, Beomgyu longed for Yeonjun every since, now present, they were both university students and their first day too. Beomgyu entered the university, taehyun and Kai were his best friends since high school and luckily they even got into the same collage together, Beomgyu was putting his books in his locker and suddenly he heard a vouce behind

"Beomgyu?"