A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.
Yoo Je-yi
Woo Seul-gi
Joo Ye-ri
Choi Gyeong
Yoo Tae-joon
Jo Ah-ra
Nam Byeong-jin
Beom-soo
Woo Do-hyeok
Homeroom Teacher
Kwon Hee-yoon
Park Byeong-hui
Yoo Je-na
Principal
Joo Ye-ri Mother's
Kim Shan-young
