세훈
Koh You
조준영
Koh Jun-hee
Jang Yeo-bin
Han So-yeon
ソン・ジェリム
Dr. Koh
정유진
Han So-yeon (adult)
이승준
Koh You's father
박은혜
Koh You's mother
Jeong Hye-seon
Koh Jun-hee's grandmother
전영인
An Sun-tak
