Pemeran
Song Eun-Chae
Oh Sung-eun
Lee Ji-hoon
Kang Bong-goo
Jeon Hye-bin
Bang Soo-yeon
Park Seul-gi
Kim Mi-sook
Shin Joo-ah
Baek Se-mi
Kim Ji-young
Biology teacher
Jeon Jae-hyeong
Ji Suk-goo
Park Ye-jin
Sung-eun's older sister
Kim Hae-sook
Sung-eun's mother
Park Gil-su
AIDS / Chan Sung-bok
Jeong Dong-hwan
Sung-eun's father
Go Ho-kyung
Da-eun
Jeong Yu-mi
Class monitor
Kim Soo-woong
Head teacher