Duty After School

Kim Ki-hae

Kim Chi-yeol

Shin Myung-sung

Im Woo-taek

Shin Hyun-soo

Lee Chun-ho

Lim Se-mi

Park Eun-young

Ahn Do-gyu

Guk Young-su

Kim Min-chul

Doh Su-chul

Kim Su-gyeom

Kwon Il-ha

Ro Jong-hyun

Jang Young-hoon

Woo Min-kyu

Kim Duk-joong

Yeo Joo-ha

Kim You-jung

Ahn Da-eun

Kim In-hye

Lee Yeon

Roh Ae-sul

Kwon Eun-bin

Yeon Bo-ra

Moon Sang-min

Wang Tae-man

Choi Moon-hee

Lee Na-ra

Kim So-hee

Lee Soon Yi

Ji Min-hyuk

Jo Young-shin

Oh Gi-gwang

Jo Jang-su

Shin Su-hyun

Cha So-yeon

Hong Xa-bin

Woo Hee-rak

Shin Hye-ji

Choi Yeon-ju

Lee Soon-won

Kim Won-bin

Hwang Se-in

Yoo Ha-Na

Oh Se-eun

Hong Jun Hee

Kim Jung-Ran

Park So Yoon

Im So-yun

Science High School student

Lee Jong-hyun

Park Hae-jun

Kim Gyu-ri

Science high school student