One on One Review: Story, Cast, Rating & Final Verdict
Last updated: May 15, 2026
Movie Overview: One on One
| Movie | One on One |
| Release Year | 2017 |
| Director | Jeong Mi-na |
| Genre | Romance |
| Runtime | 86 minutes (1h 26m) |
| Language | KO |
Quick Verdict: Hit or Flop?
Is One on One (2017) worth watching? According to our cinematic analysis, the film stands as a ABOVE AVERAGE with a verified audience rating of 5.5/10. Whether you're looking for the box office collection, ending explained, or parents guide, our review covers everything you need to know about this Romance.
Cast & Character Study
The performances in One on One are led by Seo Han . The supporting cast, including Yoon Se-na and Sang Woo , provides the necessary layers to the central narrative.
movieMx Verdict: Is it Worth Your Time?
What Works in the Movie
While One on One does not fully realize its potential, it still contains moments that may appeal to viewers who enjoy Romance films.
- Interesting concept or premise
- Some entertaining scenes
- Supporting cast delivers occasional highlights
What Doesn't Work
Despite its strengths, One on One has a few issues that may affect the overall viewing experience, particularly in terms of pacing and narrative consistency.
- Uneven pacing in certain parts of the film
- Some predictable plot developments
- May not appeal to audiences outside the Romance fanbase
Story & Plot Summary: One on One
Quick Plot Summary: Released in 2017, One on One is a Romance film directed by Jeong Mi-na. The narrative explores the complexities of love and relationships with emotional depth and authenticity. It provides a scannable look at the movie's central conflict involving Seo Han as Park Do-yeong.
Ending Explained: One on One
One on One Ending Explained: Do-yeong is unemployed after graduating college of physical education but gets a job as a trainer in the gym. Directed by Jeong Mi-na, this 2017 romance film stars Seo Han (Park Do-yeong), alongside Yoon Se-na as Han Se-hee, Sang Woo as Park Han-gyeol, Baek Se-ri as Hye-jeong. Rated 5.5/10, the conclusion has sparked discussion among viewers.
What Happens at the End of One on One?
Do-yeong is unemployed after graduating college of physical education but gets a job as a trainer in the gym. There, he meets Se-hee, a beautiful and famous sports caster who lives in his neighborhood. He tries to buy her attention but fails several times. Meanwhile, Do-yeong finds out that the gym is planning a way to use Se-hee and he sets out to save her. What is going on during the 1:1 sessions at the gym and what is the plot behind it?
Jeong Mi-na's narrative builds toward a resolution centered on Seo Han (Park Do-yeong)'s journey. There, he meets Se-hee, a beautiful and famous sports caster who lives in his neighborhood.
How Does Seo Han (Park Do-yeong)'s Story End?
- Seo Han: Seo Han's storyline wraps up in the final act, though some viewers have found the resolution more ambiguous than expected.
- Yoon Se-na (Han Se-hee): Yoon Se-na's role in the climax proves pivotal to how the central conflict resolves.
- Sang Woo (Park Han-gyeol): Sang Woo's character undergoes a significant shift in the final act.
What Does the Ending of One on One Mean?
The ending of One on One brings the narrative to a close, though viewer reception has been mixed. The resolution of Seo Han's story may not satisfy all audiences.
One on One Real vs. Reel: Is it Based on a True Story?
Is One on One Based on a True Story?
No, One on One is a work of fiction. While the romance film directed by Jeong Mi-na and starring Seo Han may incorporate realistic themes, the characters and plot are original creations.
Who Should Watch One on One?
Age Advisory: Rated Not Rated.
Consider Watching If:
- You're a completist for Romance films
- You're curious despite mixed reviews
- You have low expectations and want casual entertainment
At just 86 minutes, it's a quick watch.
Where to Watch One on One Online?
Streaming Hub🎟️ Rent on
Google Play Movies🏷️ Buy on
Google Play MoviesOne on One Parents Guide & Age Rating
2017 AdvisoryWondering about One on One age rating or if it's safe for kids? Here is our cinematic advisory:
⏱️ Runtime & Duration
The total runtime of One on One (2017) is 86 minutes (1h 26m). Directed by Jeong Mi-na, the film runs for 86 minutes in its complete theatrical version.
Verdict Summary
Analyzing the overall audience sentiment, verified rating of 5.5/10, and global performance metrics, One on One is classified as a ABOVE AVERAGE. It remains an essential part of the 2017 cinematic calendar.
Frequently Asked Questions
Is One on One worth watching?
One on One is definitely worth watching if you enjoy Romance movies. It has a verified rating of 5.5/10 and stands as a ABOVE AVERAGE in our box office analysis.
Where can I find One on One parents guide and age rating?
The official parents guide for One on One identifies it as Not Rated. Our detailed advisory section above covers all content warnings for families.
What is the runtime of One on One (2017)?
The runtime of One on One (2017) is 86 minutes (approximately 1h 26m).
movieMx Verified
This review has been verified for accuracy and editorial quality by our senior cinematic analysts.
This analysis is compiled by our editorial experts using multi-source verification and audience sentiment data for maximum accuracy.