Stars (in credits order)
Sang-Hoon Lee
ACTOR
Ahn Seo-hyun
Oh Ji-Na
Ji Min-hyuk
Seo Jay
Samuel Kim
Seo Robin
Sung Ji-ru
Oh Kang-Dong
Shin Joon-hang
Ahn Mi-nam
Kim Ji-young
Oh Sa-na
Seo Yuri
Kim Seon-hee
Kim Ye-eun
Maeng Sa-rang
Hyang-gi Kim
Ho Goo-hee
Lomon
Ji-hoon
Kim Hwan-hee
Jung Deok-hee
Ham Sung-Min
Lee Kang-min
Kim San-ho
Eum Chi-hoon (Music teacher)
Choo Soo-bin
Go Bong-i
Park Kyeong-rim
Deok-hee's mother
Park Mi-seon
Goo-hee's mother
Cha Eun-woo
Jo Ah-young
Yeo Ga-eun
Woo-Sung Hyun
Sa Gi-joon
Lee Si-woo
Go-hee's ex-Boyfriend
Cho Yi-hyun
Ye-ri
Yoo In-soo
Choi Il-jin
Jung Da-eun
Baek Song Yi
Joo Yeon-woo
Art teacher
Kim So-hee
Geum Soo-ji
Park Seo-yeon
Jeong Bo-ra
Ji-Hyun Lee
Ha Rok-hee
Min-gyu Jeong
Do-min (Student Council)
Kwon Yoo Na
Female student
Song Soo Hyun
Bae Sin-ae
