
Ji U, an outcast at a prestigious private high school, does not fit in due to his different social background compared to his well-to-do classmates. One day, he meets Hak Seong, the school’s security guard, who is actually a mathematical genius who defected from North Korea, now living with his past shut away. Ji U asks Hak Seong to teach him math, and although reluctant at first, Hak Seong eventually agrees. Finding each other in their most difficult times, Ji U and Hak Seong open up to one another during their special math lessons, but their friendship is at risk when Ji U is framed for an incident at school, and Hak Seong is faced with people prying into his past. (Source: Koreanfilm.or.kr; edited by MyDramaLIst) Edit Translation
- English
- Русский
- Türkçe
- magyar / magyar nyelv
- Native Title: 이상한 나라의 수학자
- Also Known As: Isanghan Naraui Suhakja , Mathematician in Wonderland , Mathematician of a Wonderland , Математик в стране чудес
- Director: Park Dong Hoon
- Screenwriter: Lee Yong Jae
- Genres: Life, Drama
Cast & Credits
- Choi Min SikRi Hak SeongMain Role
- Kim Dong HwiHan Ji UMain Role
- Park Byung EunKim Geun Ho [Teacher]Support Role
- Park Hae JoonAn Gi CheolSupport Role
- Jo Yoon SeoPark Bo Ram [Ji U's classmate]Support Role
- Tang Jun SangLee Tae Yeon [Hak Seong's son]Support Role
Reviews

Two outsiders. One equation: trust + time = transformation.
Some films shout. Others whisper — yet linger in your mind long after the credits roll. In Our Prime belongs to the latter.An older man hides his brilliance behind a janitor's uniform. A young student, adrift among numbers and expectations. Two people, like distant islands — until they start to truly hear each other. What follows isn’t a grand gesture or dramatic spectacle. It’s something far rarer: a genuine connection.
Mathematics here is more than curriculum. It’s a space for thought, a shared language, even a kind of comfort. The film doesn’t promise glittering careers or textbook triumphs. Instead, it shows what can unfold when someone believes in you — not to solve the problem for you, but to walk the path with you.
There’s no melodrama, no inflated conflict. Just quiet gazes, thoughtful words, and a camera that respects its characters enough to let them breathe. In Our Prime finds dignity in the act of thinking and tenderness - in the simple gesture of someone offering a pencil, not to provide answers, but to begin the search.
With quiet sensitivity, "In Our Prime" tells a story of marginalization and a sense of belonging, of the silent power of recognition — how subtle forms of acceptance can reshape a life.
Gentle and empathetic. Uplifting and sincere.

More important than the answer is the process of finding the answer
I haven't seen an interesting movie in a long time. The acting of the high school actors was good, but as expected, actor Choi Min-sik seems to be a trustworthy movie actor. In the fun part, he makes the movie not boring while acting cheerfully, and in important lines, he gives a serious acting to convey a message to the audience, so the movie is expressed more deliciously. Besides Choi Min-sik, the chemistry with Jo Yoon-seo, who played the female lead, Park Bo-ram, and Kim Dong-hwi, who plays Han Ji-woo, was also very good. You did a great job in acting as a fresh high school student. If it was a little disappointing, I felt that the content was a little distracting at the end of the movie. When watching this movie, I felt that it contained more meaning when viewed from a different point of view from a mathematical point of view.If you look at it from the point of view of life, not just math, it's a very good word. As I was living my life, I looked back at my life to see if I had lived only by the results. It made me think about how I should live my life.
I advise you to watch the movie even if you hate math...