Nam Si-heon / Koo Yeon-jun
Kwon Min-ju / Han Jun-hee
Jung In-gyu
Bae Mi-yeong
Bae Chi-won
Sung Hye-mi
Lee Su-jin
Byeon Da-hyeon
Park Ji-hui
Se-kwon
Bum-sun
Gye-sun
Noksan High School vice-principal
Jun-hee's grandmother
Jun-hee's friend
Han Jun-hee (young)
Seo Hyeon-uk
Writer
Director