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김규리 as Kim Jin-young |
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박원상 as Hwang Tae-il |
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윤소정 as |
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최유화 as |
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Jeon Soo-jin as |
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임현성 as |
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임원희 as |
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Jang Jeong-in as |
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정인서 as |
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이영은 as Kim Jin-young (7-year old) |
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추예진 as Kim Ja Yeong [Middle school student] |
| Writing | Lee Sung-eun | Writer |
| Sound | 정용진 | Original Music Composer |
| Directing | Lee Sung-eun | Director |
| Editing | 손연지 | Editor |
| Production | 곽용수 | Executive Producer |
