K-drama fans, get excited – tvN has officially confirmed Im Si-wan and Seol In-ah as the leads for the highly anticipated 2026 series My Guilty Human (나의 유죄인간)! Announced on December 18, 2025, this comic thriller romance adapts the popular Kakao Page web novel and webtoon Why Don’t You Know I’m a Woman? (여자인 걸 왜 모르지). Blending high-stakes murder mystery, office intrigue, hilarious gender-bender antics, and sizzling chemistry, it’s shaping up to be a dopamine-packed hit. With Im Si-wan’s charismatic intensity and Seol In-ah’s versatile charm, this pairing is already being called “guilty” of stealing hearts!
Intriguing Plot: Murder Suspicion, Disguise, and Unexpected Romance
My Guilty Human, scripted by Moon Soo-jung and directed by Park Dan-hee (produced by CJ ENM Studios and Pita Fat Studios), follows Yoon Yi-jun (Im Si-wan), the arrogant third-generation heir to Korea’s top conglomerate, Tae Kang Group. Blessed with looks, brains, and power, Yi-jun is a perfectionist with extreme sensitivity – the kind of boss who drives employees to quit. When a murder occurs in the company and he’s named the prime suspect, he becomes reclusive and hires a new personal escort secretary, setting the stage for chaos.
Enter Kang Jae-hee (Seol In-ah), a elite special forces detective and martial arts expert with military experience. To investigate the murder and uncover the truth about the suspicious chaebol heir, Jae-hee disguises herself as a man and infiltrates as his secretary. What follows is a precarious, unpredictable daily life filled with close-quarters tension.
As suspect and undercover detective, boss and protective subordinate, their relationship evolves in hilarious and thrilling ways. Prolonged time together reveals hidden sides of each character, leading to sweet psychological warfare that blurs the line between bromance and romance. Expect chaotic police collaborations, murder case revelations, and plenty of “pink” romantic moments amid the comedy and suspense. This classic gender-disguise trope – think Coffee Prince meets Secret Garden with added thriller edges – promises addictive fun and heartfelt depth.
Star-Studded Cast: Why Im Si-wan and Seol In-ah Are Perfect
Im Si-wan (also known as Yim Si-wan) brings his proven versatility to Yoon Yi-jun. The former ZE:A idol has transitioned seamlessly into acting powerhouse status with roles in Run On, Strangers from Hell, and recent hits showcasing his range from charming to intense. His ability to portray complex, brooding characters with underlying vulnerability makes him ideal for the domineering yet troubled chaebol heir.
Seol In-ah, rising star from Business Proposal (where she stole scenes as the quirky best friend) and Oasis, shines in diverse roles across dramas and variety shows. Her lovely, energetic presence and acting chops are set to elevate Kang Jae-hee’s “human weapon” detective – mastering the male disguise while injecting vitality and humor into the unpredictable dynamic.
This fresh on-screen pairing has fans buzzing about their potential chemistry. Sources describe it as a “dopamine-exploding” combination, with the actors navigating romance, bromance, and high-tension mind games. No supporting cast announcements yet, but with tvN’s track record, expect strong additions.
Why My Guilty Human Is a 2026 Must-Watch
In the crowded K-drama landscape, My Guilty Human stands out by reviving the beloved cross-dressing romance trope with modern twists: corporate power plays, murder mystery, and action-packed investigation. Adapted from a beloved webtoon praised for its comedic timing and emotional payoff, it balances laugh-out-loud moments with edge-of-your-seat thrills.
tvN’s 2026 lineup is heating up, and this early-year slot positions it as a potential breakout. Fans of office romances (What’s Wrong with Secretary Kim?), gender-bender classics, or thriller-romcom hybrids (Vincenzo) will devour the layered relationships and cathartic reveals.
With production underway and first broadcast slated for early 2026, anticipation is sky-high following today’s official confirmation. Will Jae-hee’s disguise hold? How will Yi-jun react to the truth? And can their “guilty” connection turn into something real?
Mark your calendars – My Guilty Human is poised to deliver guilty pleasures galore. Stay tuned for teasers, script readings, and more updates!
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