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Han Seon-hwa as Kang Eun-kyung |
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Hong Ye-ji as Kim Ji-soo / Aoi |
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여름 as Park Saet-byul / Riko |
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이화원 as Jung Min-ji / Haruka |
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유선호 as Idainashi |
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Park Cheol-min as Headmaster |
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김현 as Choi Sook-jung |
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Man-Sik Jeong as Jung-ah's father |
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피지융 as Class president |
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길창규 as Schoolmaster |
