"Someone Other Than You" ("너 말고 다른 연애") is a 14-episode KBS2 weekend drama premiering September 12, 2026, centered on a couple ten years into their relationship who each encounter new, unexpected people just as the familiarity of their long relationship starts to feel like something else entirely. Combining multiple Korean entertainment outlets, the series is built entirely from an original script with no source novel or webtoon behind it, and it's set for a notably wide simultaneous release — airing domestically on KBS2 while streaming to more than 240 countries via Amazon Prime Video.
Premise
The series follows Namgung Ho and Lee Mi-do, a couple who have been together for a decade and have grown thoroughly comfortable with each other — comfortable enough, the show's premise suggests, that the relationship has started to feel more like family than romance. That long-settled dynamic gets disrupted when new people enter both of their lives, stirring unfamiliar emotions neither partner expected to feel again after ten years together. Rather than framing this as a clean love-triangle setup, coverage describes the show as a grounded, "reality-relatable" melodrama focused on the emotional fault lines that open up when long-term comfort collides with new attraction.
Cast and Characters
Seo Kang-joon plays Namgung Ho, and Ahn Eun-jin plays Lee Mi-do, a 35-year-old film director described as most alive when she's on a film set. Lee Joo-an plays Han Tae-seung, a 32-year-old lawyer at Jaegang Law Firm known for pursuing goals without hesitation, while Jo Ah-ram plays Park Soo-ah, a 27-year-old new employee at Hoonmin Confectionery's TF3 team. Heo Ji-na joins as Go Moon-young, a top math instructor whose character adds further complication to the central relationship dynamics. Kim Mi-kyung rounds out the cast as Ma Sook-hee, the mother of several characters connected to the central couple.
Behind the Scenes
The screenplay comes from writer Yoo Su-ji, with direction shared by Hwang Seung-gi and Lee Ga-ram. Notably, the series has no source material — it's an entirely original script, which local coverage has framed as part of its appeal, since an original story means the ending isn't predictable in the way an adaptation's might be. The show premieres in KBS2's Saturday-Sunday drama slot, following the network's previous series in that timeslot, "The Completion of Marriage."
Someone Other Than You at a Glance
| Detail | Information |
|---|---|
| Network | KBS2 (Saturday-Sunday drama slot) |
| Premiere | September 12, 2026, 9:20 p.m. KST |
| Episode Count | 14 episodes, running through November 8 |
| Writer / Directors | Yoo Su-ji (writer); Hwang Seung-gi, Lee Ga-ram (directors) |
| Lead Cast | Seo Kang-joon, Ahn Eun-jin, Lee Joo-an, Jo Ah-ram |
| Streaming | Wavve, Coupang Play (domestic); Amazon Prime Video (international) |
Where to Watch
Domestically, the series is available for streaming on Wavve and Coupang Play alongside its KBS2 broadcast. Internationally, Amazon Prime Video carries the show simultaneously across more than 240 countries, giving it one of the broader same-day international release footprints among this season's new Korean dramas. As with any live broadcast schedule, viewers should note that a scheduled hiatus is expected in the series' run due to Asian Games broadcast coverage; checking KBS2's official programming updates closer to that window is recommended for anyone following the show week to week.
FAQ
Is "Someone Other Than You" based on a webtoon or novel?
No — it's built from a completely original script by writer Yoo Su-ji, with no prior source material.
Where can I watch it outside Korea?
It streams internationally on Amazon Prime Video, available in more than 240 countries alongside its domestic KBS2 broadcast.
How many episodes does the series have?
Fourteen episodes, airing Saturdays and Sundays at 9:20 p.m. KST from September 12 through November 8, 2026.
Sources: WikiTree, Korean Wikipedia, and UpToInfo's series guide.