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Zo In-sung as Ji-suk |
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신민아 as Hee-jin |
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박정아 as Hong Seong-hye |
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김수로 as Mah-ho |
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강래연 as Lee Yoo-jeong |
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최규환 as Park Eun-cheol |
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하정우 as Joon-ho |
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이미영 as Hee-jin's mother |
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김진혁 as Jong-cheol |
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Ahn Hyuk-mo as Min Jung-tae |
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박태성 as Kim Jong-hyun |
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함은정 as Seong-hye (young) |
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김정영 as Teacher |
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강동균 as Middle School Alumni #1 |
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박현숙 as Hairshop |
| Directing | Park Kwang-chun | Director |
| Writing | 김은정 | Writer |
| Writing | Park Kwang-chun | Writer |
| Writing | 설준석 | Writer |
| Sound | Michael Staudacher | Original Music Composer |
| Production | 최재원 | Executive Producer |
| Camera | 김영철 | Director of Photography |
| Sound | Robert Fernandez | Scoring Mixer |
| Crew | 전유준 | Fight Choreographer |
| Crew | 배재일 | Stunts |
| Sound | 이규석 | Sound Supervisor |
| Art | 이미지 | Production Design |
