cast
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Kim Kap-soo
Lee Kyu-Ho
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Park Se-wan
Kim Shi-Eun
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Jang Dong-yoon
Kwon Seung-Chan
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Lee Zoo-young
Park Hye-Jin
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Joo Hae-eun
Yang Na-Young
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Shin Do-hyun
Lee Ye-Ji
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Jang Seong-beom
Han Dong-Hee
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Park Soo-young
Vice principal
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Kim Sun-young
Park Shi-Young
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Lee You-mi
Kim Do-Yeon
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Hong Seung-hee
Kim Joo Hyun [First grader]
