On a sunny day, a boy named Jo-kang meets Ari, a girl in a yellow raincoat, and they become friends. Jo-kang falls helplessly in love with the quirky but attractive Ari, but one day, she suddenly disappears. Ten years pass and Jo-kang, now a high school student, gets a call from Ari and meets her again in a temple. Although they have not seen each other for ten years, they have such a great time together. Then, Ari disappears again. Jo-kang is devastated. Why has she disappeared again? What will become of them?
강혜정
as A-ri
조승우
as Jo-kang
이재용
as Monk
변주연
as Young A-ri
박건태
as Young Jo-kang
정진영
as Dr. Chu
정성화
as Joon-chul
강신일
as Jo-kang's Dad
박신혜
as Byeon-ja
