Jang Hyun-sung
Sang-hyun
Choi Jung-won
Eun-a
Oh Yoo-jin
Soo-a
Choi Min-chul
Park Dong-sik
Hwang Jeong-min
Kim Mi-hye
Jung Da-bin
Park So-won
Kang Shin-chul
Homeroom teacher
Moon Choi
Math teacher
