In Our Prime (2022)

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.

Genres: Drama

Stars: Choi Min-sik, Kim Dong-hwi, Park Hae-joon, Park Byung-eun, Jo Yoon-seo