tvN's 'Love in Disguise' emerges as one of 2026's most anticipated K-drama releases with Im Si Wan and Seol In Ah

A highly anticipated new drama is gearing up to deliver one of the biggest doses of excitement to viewers in the second half of 2026. tvN’s upcoming Monday-Tuesday series 'Love In Disguise' has already generated significant buzz through its casting announcements and newly released stills alone.

Based on the popular KakaoPage web novel and webtoon 'Why Doesn't He Realize She's a Woman?,' the drama follows a wealthy conglomerate heir accused of murder and a detective who infiltrates his life disguised as a male secretary to investigate him. The unique premise has quickly captured the attention of K-drama fans ahead of its premiere.

A Fresh Blend of Romance and Mystery

Unlike traditional cross-dressing romance dramas, 'Love In Disguise' combines romantic comedy elements with a gripping murder mystery. The series explores the truth behind a suspicious killing connected to a powerful corporation while developing a complex relationship between its two leads.

The drama's biggest appeal lies in its distinctive characters and strong cast lineup, with viewers eager to see how the actors bring the beloved source material to life.

Im Si Wan Transforms Into a Murder Suspect Heir

Actor Im Si Wan stars as Yoon Yi Jun, the next successor of the influential Taegang Group. Blessed with exceptional looks and talent, Yi Jun appears to have everything, but his arrogant personality and perfectionist tendencies make him a difficult figure to approach.

His world is turned upside down when he becomes the prime suspect in the murder of his female secretary.

Known for his ability to fully immerse himself in complex roles, Im Si Wan is expected to showcase a new side of himself through the cold yet charismatic chaebol heir. The project also marks his return to tvN for the first time since the acclaimed drama Misaeng, further raising anticipation among fans.

Seol In Ah Takes On a Bold New Role

Opposite him is Seol In Ah as Kang Jae Hee, a former special forces operative turned violent crimes detective.

Determined to uncover the truth behind Yi Jun and gather evidence against him, Jae Hee disguises herself as his male personal secretary and infiltrates his inner circle. Recently released stills featuring Seol In Ah with a short haircut and sharp suits have already attracted attention online.

While monitoring Yi Jun as part of her investigation, Jae Hee finds herself increasingly entangled in his life, creating tension between her professional duties and personal feelings.

Meanwhile, Yi Jun begins developing unexpected emotions toward his seemingly male secretary. His growing confusion and the pair's complicated push-and-pull dynamic are expected to provide both comedic moments and romantic tension throughout the series.

Kim Jung Hyun and Yeonwoo Add Another Layer of Romance

The drama's supporting storyline is equally noteworthy.

Kim Jung Hyun plays Kim Si Hyun, Yi Jun's longtime friend and a lawyer for Taegang Group's legal team. Though he appears carefree and humorous, he possesses a sharp intellect and becomes a key figure in uncovering the truth behind the case.

Joining him is Yeonwoo as Lee Hye Jung, an impeccable executive secretary known as the "face" of Taegang Group. Behind her flawless professional image, however, lies a completely different personal life.

The pair's evolving relationship is expected to deliver a different kind of romantic tension from the main couple, adding depth to the overall story.

Romance, Action, and Thriller Elements Combined

The drama balances a classic romantic comedy setup with a darker thriller centered on a mysterious murder case. Writer Moon Soo Jung and director Park Dan Hee are expected to blend the contrasting genres through fast-paced storytelling and stylish visuals.

Veteran actors, including Kim In Kwon, Kim Ki Bang, and Hong Eun Hee, round out the cast, bringing additional humor, intrigue, and emotional depth to the series.

Beyond its romance, 'Love In Disguise' promises an engaging mystery that asks one central question: Who is the real killer? As the investigation unfolds, viewers will witness a story about hidden ambitions, personal redemption, and two individuals helping each other heal while uncovering the truth.

With action, romance, comedy, and suspense all packed into one series, 'Love In Diguise' is shaping up to be one of the most talked-about K-dramas of the year. Fans of the original work and newcomers alike are eager to see whether this ambitious combination can become one of the defining hits of late 2026.