In Our Prime (2022) -

Watch the official trailer to see the dynamic between the hidden genius and his student:

A central conflict involves a school scandal that tests whether the characters will stick to the "correct path" even when it is difficult. Critical Reception In Our Prime (2022)

Played by veteran actor Choi Min-sik ( Oldboy ), he is a brilliant mathematician who fled North Korea and now lives in hiding as a humble security guard. Watch the official trailer to see the dynamic

Critics have praised the film for its emotional depth and Choi Min-sik's nuanced performance. While some reviewers found the plot slightly predictable, the Asian Movie Pulse review notes its "elegant" handling of heavy topics like financial struggle and psychological burden. While some reviewers found the plot slightly predictable,

After discovering the guard’s secret genius, Ji-woo asks for math lessons. Instead of focusing on grades, Hak-sung teaches him that math is about the process of finding the "correct answer" through logic and perseverance rather than just memorization. Key Themes

An outcast at his prestigious school due to his social background, he struggles to keep up with the intense math curriculum.