2 학기 개강 첫날. 서연대 커뮤니티 ‘서연라이프(서랖)’에 익명의 첫사랑 고백 글이 올라온다.
학생들 사이에서는 고백 글 주인공을 찾는 핑크빛 추리가 시작되는데…
Ma Joo-ah, a sophomore in college, falls in love at first sight with a senior she meets on the bus. Cha Min-ho, a childhood friend who is surprised to see Joo-ah so fascinated by her first love. The two of them meet new friends at the hostel. That night, an article was uploaded on the campus bulletin application anonymously.
