Kim Gyu-ri
Min-ah
Acting
Park Ye-jin
Hyo-shin
Acting
Lee Yeong-jin
Shi-eun
Acting
Gong Hyo-jin
Ji-won
Acting
Kim Jae-in
Yeon-an
Acting
Baek Jong-hak
Go Hyeong-seok
Acting
Maeng Bong-hak
Biology Teacher
Acting
Lee Hyun-soon
Teacher
Acting
Jung Jin-gak
Vice Principal
Acting
Kim Kyeong-jin
Group of Singer
Acting
Lee Hye-mi
Student
Acting
Shin Hye-jung
Classmate
Acting
Han Seung-yeon
Class Leader
Acting
Lim Seong-eon
Athletics Member
Acting
Ku Hye-ju
Athletics Captain
Acting
Oh Min-ae
School nurse
Acting
Han Min
Shi-eun's friend
Acting
Jeon Gi-gwang
Coach
Acting
Kang Min-kyung
Classmate
Acting