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.
- Director
- Park Dong-hun
- Writers
- Lee Yong-jae
Themeshigh schoolhigh school studentinter-korean relationsjanitormathematician
