가슴의 문을 두드려도

柳成禄

Jung-ho

Moon Su-hyung

Min-jeong

崔至祐

Eun-hee

Jo Ha-seong

Hyung-gook

Lee Seo-won

Jin-kyu

张俊惠

Korean teacher

尹敬浩

Homeroom teacher

安敏英

Min-jeong's Mother