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.
Kang Hye-jung
A-ri
Cho Seung-woo
Cho Jo-kang
Lee Jae-yong
Monk
Byeon Ju-yeon
Young A-ri
Park Gun-tae
Young Jo-kang
Jung Jin-young
Dr. Chu
Chung Sung-hwa
Joon-chul
Kang Shin-il
Jo-kang's Dad
