Kim Ok-bin

Young-eon

Seo Ji-hye

Seon-min

Cha Ye-ryun

Cho-ah

Kim Seo-hyung

Hee-yeon

İm Hyun-kyung

Hyo-jung

전여진

Hwa-jung

이은

Mi-hee

윤영

Hye-sun

선주연

Jin-young

원애리

Myung-sook

박윤경

Eun-ha

김필

Teacher

Kim Jung-young

Young-eon's mother

Kim Bo-mi

Classmater

한재우

Gym teacher