A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.
이혜리
Yoo Je-yi
정수빈
Woo Seul-gi
강혜원
Joo Ye-ri
오우리
Choi Gyeong
Kim Tae-hun
Yoo Tae-joon
채서은
Jo Ah-ra
최영재
Nam Byeong-jin
김상지
Beom-soo
Lee Won-jae
Woo Do-hyeok
유정래
Homeroom Teacher
강진아
Kwon Hee-yoon
Ma Hyun-ji
Park Byeong-hui
