심장이 뛴다

Yunjin Kim

Chae Yeon-hee

Park Hae-il

Lee Hwi-do

강해인

Hyun-joo

Lee Seung-joon

Teacher Moon

고우리

Girl Group Member

Kim Sang-ho

Team Leader Jo

Kang Shin-il

Director Choi

Ju Jin-mo

President Kang

정다혜

Na Soo-young

박하영

Chae Ye-eun

안지혜

Min Seo's mother

Jo Min-ah

Min Seo