Seo Kang-joon and Ahn Eun-jin Face a Relationship Crisis in A Love Other Than Yours

Seo Kang-joon and Ahn Eun-jin’s New Poster Asks What Remains After Love Loses Its Spark

Seo Kang-joon and Ahn Eun-jin are moving beyond the excitement of a new romance in their upcoming drama A Love Other Than Yours. Instead, they will explore the quieter and more complicated question of what happens when a relationship survives for years but begins to lose its emotional certainty.

KBS2 unveiled the drama’s main poster on August 12, showing Seo and Ahn as Namgung Ho and Lee Mi-do, a couple who have been together for 10 years. Sitting back-to-back as snow falls around them, the characters appear physically close and familiar, yet their eyes are directed toward different places.

The poster’s central line, “Our love no longer sparkles,” turns that visual distance into the drama’s defining conflict. Ho and Mi-do once expected marriage to follow naturally after a decade together. Now, they must consider an outcome they previously could not imagine: ending the relationship entirely.

A Poster Built Around Emotional Distance

Rather than depicting an argument or an obvious breakup, the poster captures something more restrained. Ho and Mi-do remain beside one another, suggesting the comfort and shared history that still connect them. Their opposing gazes, however, indicate that familiarity may no longer mean they want the same future.

That tension provides a more realistic starting point than the instant attraction commonly found in romantic dramas. The central couple already knows each other’s habits, weaknesses and personal histories. Their challenge is not learning how to fall in love but deciding whether their established relationship is still an active choice.

According to the production team, the poster represents the moment when an unfamiliar fracture begins to appear in what Ho and Mi-do believed was their strongest and most dependable bond.

The drama will follow the pair as new emotions enter their lives, forcing them to distinguish between love, loyalty, habit and the fear of starting again.

Who Are Namgung Ho and Lee Mi-do?

Seo Kang-joon plays Namgung Ho, an assistant manager on a product team at Hunmin Confectionery. Friendly, considerate and naturally skilled at making people comfortable, Ho has spent much of his life imagining a future with Mi-do, whom he has known since childhood.

Ahn Eun-jin plays Lee Mi-do, a film director whose long relationship with Ho has become deeply integrated into her everyday life. After 10 years, the two have shared enough memories and routines for marriage to appear inevitable. The arrival of unfamiliar feelings complicates that assumption and places Mi-do at the center of a difficult decision about the life she genuinely wants.

The wider cast includes Lee Joo-ahn and Jo Aram as new figures whose presence affects the couple’s emotional balance. Their roles make the English title, A Love Other Than Yours, especially meaningful: the drama is not only asking whether another person can disrupt an old relationship, but why that relationship had already become vulnerable.

A Different Kind of Romance for Both Leads

The project offers Seo Kang-joon an opportunity to return to emotionally driven romance after taking on more genre-focused and high-concept roles. His best romantic performances have often relied on controlled expressions and subtle changes in tone, making him well suited to a character whose conflict develops beneath a warm and reassuring exterior.

Ahn Eun-jin has similarly built a reputation for portraying emotionally complicated women without reducing them to a single characteristic. Her performances in Hospital Playlist, The Good Bad Mother and My Dearest demonstrated her ability to move naturally between humor, vulnerability and emotional intensity.

Their pairing is therefore valuable for a story in which much of the conflict may appear through hesitation, silence and small shifts in behavior. The poster depends on precisely that kind of acting: neither character looks openly angry, yet it is immediately clear that something important between them has changed.

A Relationship Story Designed for International Viewers

Written by Yoo Soo-ji and directed by Hwang Seung-gi and Lee Ga-ram, A Love Other Than Yours is planned as a 14-episode series. Hwang previously directed KBS dramas including Into the Ring and The Matchmakers.

The drama will premiere on KBS2 on September 12 at 9:20 p.m. KST and air every Saturday and Sunday. Prime Video has also confirmed that the series will be available internationally, allowing its long-term relationship story to reach viewers outside South Korea.

That global release could be particularly important because the drama’s central dilemma is not culturally limited. The pressure to turn a long relationship into marriage, the fear of wasting years already invested and the uncertainty created by meeting someone new can resonate across different audiences.

The main poster does not reveal whether Ho and Mi-do will repair their relationship or accept that it has ended. It instead captures the more difficult stage before either decision, when two people remain close enough to feel like home but are no longer certain they are moving toward the same destination.