K-drama fans have plenty of reasons to be excited about 2026, and one of the biggest is undoubtedly Love in Disguise. Even before its official premiere, the upcoming tvN drama has captured viewers’ attention thanks to its intriguing storyline, star-powered cast, and the undeniable chemistry between lead stars Im Si-wan and Seol In-ah.

Recently released promotional photos gave fans a glimpse of the cast’s playful dynamic, instantly sparking discussions across social media. The charming photo booth-style pictures showcased a natural connection between the actors, making many viewers eager to see their on-screen relationship unfold.

What makes Love in Disguise particularly exciting is its unique blend of genres. The series combines romance, mystery, comedy, and thriller elements into one captivating story. Add an undercover investigation, a murder case, hidden identities, and a slow-burn romance, and you have all the ingredients for a drama that could become one of tvN’s biggest hits of 2026.

Whether you’re a fan of romantic mysteries or simply looking for your next binge-worthy K-drama, Love in Disguise is already shaping up to be a must-watch.

Quick Drama Facts

• Drama Title: Love in Disguise
• Korean Title: 나의 유죄인간 (My Guilty Human)
• Genre: Romance, Mystery, Comedy, Thriller
• Network: tvN
• Episodes: 12
• Country: South Korea
• Language: Korean
• Director: Park Dan-hee
• Based On: Popular web novel and webtoon
• Release Date: Second Half of 2026
• Streaming Platform: TBA

Plot Summary

The story follows Yoon Yi-jun, the seemingly perfect heir to the powerful Taegang Group. Wealthy, intelligent, and handsome, Yi-jun appears to live an enviable life. However, beneath his flawless exterior lies a lonely man whose perfectionist tendencies and emotional sensitivity have made it difficult for him to connect with others.

His world is turned upside down when a shocking murder case occurs within the company. As suspicion begins to surround him, Yi-jun isolates himself from society, becoming increasingly withdrawn and guarded.

Determined to uncover the truth, former special forces officer and current detective Kang Jae-hee takes on a dangerous undercover mission. Disguising herself as a male secretary, she infiltrates Yi-jun’s household and begins working closely with him.

What starts as a professional investigation soon becomes far more complicated. As Jae-hee discovers the hidden truths behind Yi-jun’s life, she begins seeing a side of him that no one else knows. Meanwhile, Yi-jun finds himself trusting his mysterious secretary more than anyone else.

With secrets, betrayals, hidden identities, and growing romantic feelings standing in their way, the two must navigate a dangerous path where love and truth become deeply intertwined.

Cast and Characters

Im Si-wan as Yoon Yi-jun

Im Si-wan plays the wealthy heir of Taegang Group, a man admired by everyone around him for his intelligence, appearance, and success. However, his seemingly perfect life masks emotional scars and personal struggles that have left him isolated. When a murder case places him at the center of suspicion, Yi-jun’s carefully constructed world begins to crumble.

The role is expected to showcase Im Si-wan’s ability to portray complex characters who balance vulnerability with emotional depth.

Seol In-ah as Kang Jae-hee

Seol In-ah takes on the role of Kang Jae-hee, a former special forces member who later becomes a detective. Courageous, resourceful, and highly skilled, Jae-hee is assigned to investigate the mysterious murder case surrounding Yi-jun.

To get close to her target, she disguises herself as a male secretary and enters his daily life. Her undercover mission leads to both hilarious situations and emotional moments as she gradually develops unexpected feelings.

Kim Jung-hyun

Kim Jung-hyun joins the drama in a significant supporting role connected to the central mystery. His character is expected to play a crucial part in the investigation and the unfolding secrets surrounding the murder case.

Yeonwoo

Yeonwoo takes on an important role within the drama’s relationship dynamics. Her character is expected to bring additional emotional tension and complexity to the story while contributing to the mystery elements.

Supporting Cast

The drama also features a talented supporting cast who will help bring the corporate intrigue, investigation, and romantic storylines to life. Additional character details are expected to be revealed closer to the premiere.

Why You Should Watch Love in Disguise

• A refreshing undercover romance storyline.
• Im Si-wan and Seol In-ah’s chemistry is already winning over fans.
• A perfect mix of mystery, romance, comedy, and suspense.
• Based on a popular web novel and webtoon.
• Strong cast featuring some of Korea’s most beloved actors.
• An intriguing murder investigation at the heart of the story.
• Promises both emotional depth and thrilling twists.

Where to Watch

Love in Disguise will air on tvN in South Korea during the second half of 2026.

International streaming details have not yet been officially announced. Fans should keep an eye on major streaming platforms such as Netflix, Viki, Disney+, and TVING for future updates regarding global availability.

Final Thoughts

Among the many upcoming Korean dramas scheduled for 2026, Love in Disguise stands out as one of the most promising. Its unique combination of romance, mystery, hidden identities, and emotional storytelling gives it the potential to become a fan favorite.

With Im Si-wan and Seol In-ah leading the cast, viewers can expect compelling performances, heartfelt moments, and plenty of suspense. If you’re looking for a drama filled with chemistry, intrigue, and unforgettable characters, Love in Disguise deserves a spot at the very top of your watchlist.