It’s the summer of 2009 and Cheong Ah is a senior in high school who is the second of three daughters. Her parents run a small chicken restaurant while her older sister is a news anchor. Cheong Ah doesn’t have any hopes or dreams, and no one knows why, except for a friend she has only talked to via text messages. She skips school and gets on a train to go meet him where she runs into a handsome soldier.
영웅 치킨집 세 딸 중 재벌가 입성이 목표인 맏딸 설아는 오지랖만 넓은 고3 여동생 청아가 답답하기만 하다.
청아는 사실 학교폭력에 시달리고 있었고, 급기야 온라인에서 만난 남학생 준겸과 동반자살을 하러 구둔역으로 향하는데..
