Yim Si Wan, Seol In Ah share handcuffs on tvN's first poster

What the Handcuff Poster Actually Shows

tvN's first paired image for "Love in Disguise" does the work of a plot summary: two leads, one pair of handcuffs, and a tagline that turns a murder investigation into a romance line. Here is what is actually in the frame — and what each detail signals about the drama arriving in October.

The handcuff poster is the first two-shot promotional image for tvN's Monday–Tuesday drama "Love in Disguise" (Korean title 나의 유죄인간), released on September 14, 2026 . It shows Yim Si Wan and Seol In Ah standing shoulder to shoulder in tight close-up, faces pressed into unusually close proximity, their wrists bound by a single shared pair of handcuffs. Yonhap reports tvN supplied the image alongside confirmation of the broadcast plan, and Soompi published the English-language breakdown the same day . The drama premieres October 19, 2026 .source

Quick Answer: tvN released the first "Love in Disguise" poster on September 14, 2026, showing Yim Si Wan and Seol In Ah handcuffed together in close-up under the line "You're guilty. Guilty of making my heart race." The Monday–Tuesday thriller romance premieres October 19, 2026 at 8:50 p.m. KST.source

Both actors wear deliberately flat, nonchalant expressions — Korean outlets described the effect as 「무심한 표정 속 묘한 거리감」, a strange sense of distance inside indifferent faces, with the handcuffs carrying all of the threat . Nothing in the pose reads as a conventional couple teaser. The restraint is the point: the physical link is involuntary, and the framing keeps the two leads from looking at each other at all.

The main copy is a wordplay that only works because of the premise. It reads "당신 죄 지었어, 내 마음을 뛰게 한 죄," rendered by Soompi as "You're guilty. Guilty of making my heart race," with the English title and broadcast information set at the bottom of the frame . A guilty verdict and a racing heart are the same sentence here — which is a compact way of stating that one of these characters is a murder suspect and the other is the person assigned to prove it.

Styling splits the two roles before a single line of dialogue is heard. Yim Si Wan appears in a deep blue, polished tailored jacket appropriate to a conglomerate heir, while Seol In Ah wears a leather jacket for a harder, field-ready look . Read together, the three elements — the shared cuff, the split wardrobe, and the double-meaning tagline — literalize the investigation, the forced proximity, and the romance in one image. It is also the third promotional beat of the campaign rather than the first asset: a set of character stills and a four-actor script-reading photo set went out earlier in September . The official program page is already live with an 「예정」 (upcoming) status label, hosting the poster, stills and making-of content .

The Premise: A Chaebol Heir, a Murder Case, and an Undercover Detective

"Love in Disguise" is a murder-investigation romance in which a third-generation chaebol heir becomes the prime suspect and the detective assigned to watch him moves in beside him under a false identity. Yim Si Wan plays Yoon Yi-jun (윤이준), next in line to succeed at the Tae-gang Group, and Seol In Ah plays Kang Jae-hee (강재희), a detective with a special-forces background who embeds herself in his daily orbit to record every move he makes . Korean coverage and Soompi both specify her cover role: Yoon Yi-jun's personal secretary, which puts her inside his schedule, his office and his family's business by design rather than by coincidence.

Korean promotion files the series under a specific genre label — 밀착 스릴 로맨스, a "close-contact thriller romance" . The phrase is doing real work here. 밀착 means adhesion or close attachment, and the format it describes is one where the thriller mechanics and the romance share the same scenes instead of alternating between them: the reason the two leads are physically close at any given moment is the surveillance, not a meet-cute.

That produces a doubled identity structure running on two axes at once, which is why the handcuff poster reads as a premise summary rather than a generic couple teaser :

• Suspect vs. investigator. Yoon Yi-jun is named in a murder case; Kang Jae-hee is the officer building it. Every interaction is evidence-gathering for one of them.
• Heir vs. subordinate. On paper he is her employer and she is his secretary, inverting the power relationship that actually governs the investigation.
• Public face vs. real assignment. Her cover identity has to hold inside a conglomerate's inner circle, where the chairman's office, the legal team and the family all have their own reasons to watch a new hire.

The handcuffs in the September 14 poster literalize both halves of that setup simultaneously — the police procedure of restraining a suspect, and the enforced physical closeness the undercover assignment demands . The tagline printed across the frame, "당신 죄 지었어, 내 마음을 뛰게 한 죄" — rendered in English as "You're guilty. Guilty of making my heart race" — turns the same word, guilt, toward the criminal charge and the romance at once . Styling reinforces the split: Yim Si Wan in a polished deep-blue tailored jacket, Seol In Ah in leather, per the Yonhap description of the image.

Who's Confirmed So Far: Full Cast List

Beyond the two leads, "Love in Disguise" has confirmed a supporting ensemble split between the Tae-gang Group boardroom and the police special investigation team. Kim Jung-hyun plays Kim Si-hyun (김시현), an attorney on Tae-gang's legal team and Yoon Yi-jun's close friend, while Yeon Woo plays Lee Hye-jeong (이혜정), secretary to the Tae-gang chairman — both roles confirmed in June 2026 . The later casting wave fills out the investigation unit and the Yoon family, the two groups the handcuffed pair moves between.

Kim In-kwon takes the role of special investigation team leader Park Bong-i (박봉이), with Kim Ki-bang as fellow detective Jung Wan-gu (정완구). On the family side, Hong Eun-hee plays Yoon Mi-jin, Yoon Yi-jun's sister; Park A-in plays Yoon Na-jeong; Choi Jin-ho plays Yoon Tae-sik; and Cho Seung-yeon plays Na Man-seok .

Nam Hae-jun rounds out the police side as elite lieutenant Kim Seok-jin (김석진), a part he reportedly won against roughly 300-to-1 odds in casting .

The distribution is worth reading as structure rather than a name list: seven of the confirmed roles sit inside either Tae-gang's corporate apparatus or the Yoon household, and four sit inside the police unit pursuing the case. That balance matches a premise in which the detective lead has to operate inside a company where almost everyone around her answers to the man she is surveilling. Casting was announced in stages through June and early September 2026, with the full list carried in Korean entertainment coverage alongside the script-reading photos .source

Where and When to Watch Love in Disguise

"Love in Disguise" premieres Monday, October 19, 2026 at 8:50 p.m. KST on tvN, with each episode running roughly 80 minutes in the 20:50–22:10 block . That date has been consistent across every report reviewed since the first poster drop, and it is printed on the poster itself along with the English title . Internationally, Amazon Prime Video carries the series the same day across more than 240 countries and territories, with new episodes weekly .

The show takes the Monday–Tuesday slot over from "로또 1등도 출근합니다" ("Even Lotto Winners Go to Work"), so the handover date is fixed by tvN's existing schedule rather than by a flexible premiere window . Domestic streaming runs through TVING, which is where viewers in Korea will find replays and catch-up episodes after the linear broadcast .

For fans outside Korea, the practical detail worth acting on is the same-day Prime Video release. Yonhap confirmed global availability through Prime Video alongside the broadcast plan , and the Prime Video-distributed announcement narrows the window to an October 19 premiere in more than 240 territories .

Do: open your own region's Prime Video listing and read the local timestamp directly. A 20:50 KST broadcast lands the same calendar day in most of Asia, but on October 19 it falls in the morning for Europe and the small hours for the Americas — the episode number is the reliable anchor, not the date on your screen.

Don't: assume the older tvN export pattern of a several-day or same-week lag behind the Korean airing. That gap was standard for many earlier tvN titles routed through regional licensing, and it no longer describes this release. Waiting for a delayed drop here means sitting out the first-night discussion entirely.

Also don't expect a full-season binge. The Prime Video rollout is weekly, matching the two-episodes-per-week Monday–Tuesday broadcast rhythm rather than a batch release . If your usual habit is to let a tvN drama finish before starting it, the trade-off with this one is that the handcuff premise is built on week-to-week reveals about who knows what.

From Webtoon to Screen: The Source Material and Production Team

"Love in Disguise" is an adaptation of the KakaoPage web novel and webtoon 여자인 걸 왜 모르지, rendered in English coverage as "Why Doesn't He Know I'm a Woman?" or "Why Don't You Know It's a Girl?" . Prime Video publicity puts the source webtoon at more than 8.15 million views on Kakao Webtoon , which is the clearest available measure of how much built-in readership the series arrives with. If you read the original, expect the emphasis to move: the adaptation reportedly shifts the center of gravity from the web novel's female special-forces detective lead toward the male chaebol-heir suspect .

That rebalancing is worth holding in mind before the premiere, because it changes whose point of view carries the mystery. In the source, the disguise belongs to the detective; in the tvN version, the marketing has been built around the suspect's side of the handcuffs, with Yoon Yi-jun positioned as the character the audience is asked to read and misread. Readers of the webtoon and first-time viewers are effectively watching two slightly different shows.

The production credits are settled. The screenplay is by Moon Su-jeong (문수정), and the director is Park Dan-hee (박단희), whose previous work includes ENA's 당신의 맛 . The series is planned by CJ ENM Studios and produced by Pitapat Studio, credits confirmed in both Korean entertainment coverage and the Prime Video announcement . That pairing matters practically: CJ ENM Studios planning is what places the title in tvN's own Monday–Tuesday pipeline rather than in a licensed slot.

For anyone tracking the campaign rather than the plot, the September 14 handcuff image is the third promotional beat, not the opening one. Earlier in September, the production released a first set of character stills — described in Korean coverage as 재벌 3세 임시완, 백마 탄 형사 설인아 — followed by a four-actor script-reading photo set . The official tvN program page is already live with an 예정 (upcoming) status label and is hosting the poster, stills and making-of material as it drops , which makes it the most reliable single place to watch the next asset land rather than waiting for reposts.

Soompi, Newsen and The Fact have all carried the poster and production details, with Hankyung adding tvN's own framing of the project.

Why This Casting Matters: A 12-Year tvN Return and a New Action Role

The casting itself is part of the story. "Love in Disguise" is Yim Si Wan's first tvN series in roughly 12 years — his last was "Misaeng" in 2014 , the office drama that reset how the industry saw him as an actor rather than an idol. Seol In Ah returns to the same network after about three years, since "Twinkling Watermelon" in 2023 . For fans tracking either actor, that makes the October 19 premiere a network homecoming twice over, not just another Monday–Tuesday slot fill.

tvN put its own framing on the record this week. At the network's "Creator Talk 2026" on September 16, CP Kim Ho-joon said securing Yim Si Wan took about a year, and described the project as a thriller and a romance fused rather than alternated . He also addressed the obvious comparison point for a cross-dressing female lead in Korean television.

"We encouraged her to build a character that could stand apart from Go Eun-chan in 'Coffee Prince,'" said Kim Ho-joon, CP at tvN, who added that Seol In Ah performed her action scenes powerfully without a double (source: Hankyung, 2026-09).

That last detail is the practical one. Kang Jae-hee is written as a special-forces-trained detective, and a no-double action performance is a different kind of physical ask than Seol In Ah's previous tvN work suggested. Go Eun-chan, played by Yoon Eun-hye in MBC's "Coffee Prince," has been the default reference for gender-disguise roles in Korean drama for nearly two decades; the production's stated goal of distance from it signals that the disguise here is investigative cover, not romantic comedy device — consistent with the undercover-secretary setup the poster literalizes.

The concrete takeaway: "Love in Disguise" premieres Monday, October 19, 2026 at 8:50 p.m. KST on tvN, running 20:50–22:10 , with same-day episodes on Amazon Prime Video in more than 240 countries and territories and domestic streaming on TVING . If you are following either lead, the official tvN program page is where the next teaser lands first; expect a full-length trailer and character posters in the four weeks before premiere, as the campaign has run roughly one asset per week since the early-September stills.

Frequently asked questions

When does Love in Disguise premiere?

"Love in Disguise" premieres on Monday, October 19, 2026 at 8:50 p.m. KST on tvN . It runs in tvN's Monday–Tuesday slot with episodes airing 20:50–22:10 KST, roughly 80 minutes, taking over from "Even Lotto Winners Go to Work" . International viewers get the same-day release on Amazon Prime Video rather than waiting for a delayed window .

Where can international fans watch Love in Disguise?

Amazon Prime Video carries "Love in Disguise" internationally, with a same-day October 19 premiere across more than 240 countries and territories and new episodes added weekly . Yonhap also confirms global distribution through Prime Video as part of the broadcast plan tvN announced alongside the poster . Viewers in Korea stream the series domestically on TVING .

What is Love in Disguise based on?

The drama adapts the KakaoPage web novel and webtoon "여자인 걸 왜 모르지," rendered in English coverage as "Why Doesn't He Know I'm a Woman?" or "Why Don't You Know It's a Girl?" . Prime Video publicity places the source webtoon at more than 8.15 million views on Kakao Webtoon . The screen version reportedly shifts emphasis from the novel's female special-forces detective toward the male chaebol-heir suspect .

Who do Yim Si Wan and Seol In Ah play?

Yim Si Wan plays Yoon Yi-jun, an arrogant third-generation heir next in line to succeed at Tae-gang Group, who is named the prime suspect in a murder case . Seol In Ah plays Kang Jae-hee, a detective with a special-forces background who goes undercover as Yoon Yi-jun's personal secretary to surveil him . That doubled identity — suspect versus detective, heir versus subordinate — is what the shared handcuffs in the September 14 poster stand in for.

Is this Yim Si Wan's first tvN drama since Misaeng?

Yes. "Love in Disguise" is Yim Si Wan's first tvN series in roughly 12 years, since "Misaeng" in 2014 . tvN CP Kim Ho-joon said at the network's "Creator Talk 2026" that casting the actor took about a year . Seol In Ah is also returning to the network after about three years, since "Twinkling Watermelon" in 2023 .

Enjoyed this article? Subscribe to get new stories by email whenever they're published.

Subscribe

This article was written using information collected and analyzed by NAMANE's in-house K-pop research AI engine. We use AI technology to bring you faster, broader coverage, and in the process some details may occasionally differ from the latest facts. For important information such as dates, venues, and prices, please double-check with official sources.