cast
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Kim Hyeon-soo
Ko Seo-Yeon
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Jang Dong-yoon
Han Ji-Hoon
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Seo Ji-hoon
Bae Joon-Young
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Seo Young-joo
Lee So-Woo
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Seo Shin-ae
Park Cho-Rong
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Cho Jae-hyun
Han Kyung-Moon
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Shin Se-hwi
Lee Joo-Ri
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Ahn Seung-gyun
Choi Seung-hyeon
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Ahn Nae-sang
Ko Sang-Joong
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Kim Yeo-jin
Seo-Yeon's mother
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Shin Eun-jung
Teacher Kim
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Yoo Ha-bok
Principal
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Shim Yi Young
Detective Oh
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Ahn Sol-bin
Lee Yoo-Jin
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Ji Su-yeon
homeroom teacher
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Lee Do-gyeom
Lee Sung-Min
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Kim So-hee
Kim Soo Hee
