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진영 as Koo Jin-woo |
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DAHYUN as Oh Sun-ah |
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손정혁 as Ahn Sung-bin |
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이민구 as Byun Tae-wan |
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김요한 as Oh Dong-hyun |
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김민주 as Yoon Ji-soo |
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이승준 as Han Byeong-ju |
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황규찬 as Yong-rae |
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Park Seong-woong as Jin-woo's Father |
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Shin Eun-jung as Jin-woo's Mother |
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Jo Dal-hwan as Technology and Home Economics Teacher |
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신기루 as Geography Teacher |
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이선민 as Homeroom Teacher |
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손우현 as Sun-ah's groom |
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이주승 as Senior |
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조재경 as Student |
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유은아 as Student |
| Directing | 조영명 | Director |
| Writing | 九把刀 | Original Film Writer |
| Camera | 홍재식 | Director of Photography |
| Art | Jeong Seong-gyun | Production Design |
| Editing | Kim Man-geun | Editor |
| Production | 송대찬 | Producer |
| Sound | Lee Jong-myoung | Original Music Composer |
| Directing | Park Min-woo | Assistant Director |
| Production | Park Andrew | Co-Producer |
| Writing | 조영명 | Writer |
| Writing | 조영명 | Adaptation |
| Sound | 안복남 | Production Sound Mixer |
| Writing | 곽재용 | Writer |
| Lighting | 홍재식 | Lighting Director |
| Art | Jeon Sung-ho | Set Decoration |
| Costume & Make-Up | Yi Choong-yun | Costume Design |
| Costume & Make-Up | Han Eun-kyoung | Makeup & Hair |
| Sound | 김은정 | Sound Supervisor |
| Visual Effects | 백상훈 | Visual Effects |
| Editing | 이정민 | Digital Intermediate |
| Crew | Kim Tae-kang | Martial Arts Choreographer |
| Production | Shin Kyung-chul | Line Producer |
| Writing | 九把刀 | Novel |
