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Kim Hyeon-sooKo Seo-Yeon
Jang Dong-yoonHan Ji-Hoon
Seo Ji-hoonBae Joon-Young
Seo Young-jooLee So-Woo
Seo Shin-aePark Cho-Rong
Cho Jae-hyunHan Kyung-Moon
Shin Se-hwiLee Joo-Ri
Ahn Seung-gyunChoi Seung-hyeon
Ahn Nae-sangKo Sang-Joong
Kim Yeo-jinSeo-Yeon's mother
Shin Eun-jungTeacher Kim
Yoo Ha-bokPrincipal
Shim Yi YoungDetective Oh
Ahn Sol-binLee Yoo-Jin
Ji E-suhomeroom teacher
Lee Do-gyeomLee Sung-Min
