Seo Kang-joon and Ahn Eun-jin will portray a couple of 10 years in a new melodrama.

KBS2 announced on March 17 that the two actors have been cast in its upcoming weekend mini-series Another Romance, Not You (written by Yoo Su-ji, directed by Hwang Seung-gi and Lee Ga-ram).

The drama follows a long-term couple facing unfamiliar emotions after a decade together. It explores the tension between breakup and marriage, capturing the realistic conflicts of a relationship at a crossroads.

Seo Kang-joon will play Namgoong Ho, an assistant manager in the TF team at Hoonmin Confectionery. His character is warm, sociable, and humorous, portraying the emotional turbulence of a man shaped by love.

Ahn Eun-jin takes on the role of Lee Mi-do, a film director who once gained global attention for her graduation project but later struggles against the harsh realities of the industry. She navigates between a decade-long relationship and new, unfamiliar emotions.

The two characters share a deep, long-standing bond, but that very familiarity begins to shake their relationship. The drama is expected to deliver strong synergy through grounded, realistic couple acting.

The production team stated, "Both actors have the ability to convey emotions with sincerity and naturally draw viewers into the story. Audiences will relate to the realistic emotions and narrative."

Another Romance, Not You is directed by Hwang Seung-gi, known for The Matchmakers and Into the Ring, with rookie writer Yoo Su-ji making her mini-series debut. The drama is scheduled to air in the second half of 2026.