김하늘

Park Hyo-joo

Yoo İn-young

Hae-young

이원근

Jae-ha

Lee Hee-jun

Pyo Sang-woo

Ki Joo-bong

Jae-ha's father

Lee Ki-woo

Lee Jong-chan

Jeong Seok-yong

vice-principal

홍완표

head teacher