Yeon-woo, neurologically colorblind, sees colors through Yoo-han in a "color rush." Their connection intertwines with the mystery of his missing mother.
Yoo Jun
Choi Yeon-woo
Han Sang-hyuk
Kim Se-hyun
Yeon Min-ji
Yoo Yi-rang
Oh Yu-jin
Kim Ye-won
Baek Seo-hoo
Jung Joo-haeng
Min Hyo-gi
Kang Min-jae
Yoo Jang-young
Sang-jae
Ryu Ye-ri
Kim Hyeon-joo
