A genius mathematician with a hidden past and a needy student given up on math.
Ji-woo, an outcast at a prestigious private school, meets Hak-sung, the school janitor who is actually a mathematical genius who defected from North Korea.
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Cast
- Choi Min-sikRi Hak-sung
- Kim Dong-hwiHan Ji-woo
- Park Hae-joonAhn Gi-chul
- Park Byung-eunKim Geun-ho
- Jo Yoon-seoPark Bo-ram
- Tang Joon-sangTae-yeon
- Kim Won-haePark Pil-joo
- Ju Jin-moProfessor Oh
- Kim Hee-jungBo-ram's Mother
- Kang Mal-geumJi-woo's Mother
Crew
- Park Dong-hunDirector
- Lee Yong-jaeWriter
- Park Hong-yeolDirector of Photography
- Lee Ji-sooOriginal Music Composer
- Kim Sun-minEditor
- Hwang Jae-soonProducer
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