# Love in Disguise Teaser: A Chaebol Murder Suspect, an Undercover Detective Posing as His Secretary

URL: https://technosports.co.in/love-in-disguise-teaser-a-chaebol-murder/  
Published: 2026-10-15  
Updated: 2026-10-15  
Author: Reetam Bodhak

Imagine your new boss is a billionaire heir, a murder suspect, and the pickiest man alive. Now imagine you took the job to prove he did it.

That is the setup of tvN’s upcoming romance thriller *Love in Disguise*, and the new teaser gives us a first taste of the tension, the sarcasm and the sparks. Here is everything the teaser reveals.

## Love in Disguise : Overview

| Detail | Info |
| --- | --- |
| **Network** | tvN |
| **Genre** | Romance thriller |
| **Premiere** | October 19, 8:50 p.m. KST |
| **Male lead** | Yim Si Wan as Yoon Yi Jun, an heir of the Taegang Group |
| **Female lead** | Seol In Ah as Kang Jae Hee, a former special forces officer |
| **Supporting cast** | Kim Jung Hyun as lawyer Kim Si Hyun; Yeonwoo as Lee Hye Jung, secretary to the chairman |
| **Korean title** | 나의 유죄인간 |

## The Premise: Suspect Meets Spy

Yoon Yi Jun is an arrogant chaebol heir who becomes a murder suspect. Kang Jae Hee is a former special forces officer who goes undercover as his personal secretary to investigate him from the inside.

It is a classic setup with a fun twist: she has to be good at the job and keep her real purpose hidden at the same time. Fans of Yim Si Wan can also read more about the actor on [Wikipedia](https://en.wikipedia.org/wiki/Yim_Si-wan).

## What the Teaser Shows?

### An Unbothered Suspect

Yi Jun is raised to inherit the Taegang Group, and the teaser leans into how meticulous and sensitive he is. Even while police question him about murder, he calmly asks whether they truly believe he did it. That one line says a lot about his personality: confident, strange and impossible to read.

> [하이라이트] 살인 용의자와 잠입 수행비서로 단단히 엮인 예민 까칠 재벌 3세 윤이준과 강철 형사 강재희🔥 오묘한 관계의 김시현X이혜정까지 달콤살벌 핑크빛 위장 잠입 로맨스의 시작💖 밀착 스릴 로맨스 <나의 유죄인간> 10/19 [월] 저녁 8:50 첫 방송 | tvN #tvN #나의유죄인간 https://t.co/xkDQxE2x6L
>
> — tvN drama (@CJnDrama) [October 13, 2026](https://x.com/CJnDrama/status/2110143556459393061?ref_src=twsrc%5Etfw)

### A Clever Way In

Furious at his attitude, Jae Hee spots a job posting for a personal secretary open only to men. Since people often mistake her for a man, she decides to use that to her advantage and walks into the interview with confidence. It is a bold, slightly comic move that sets her up as someone who thinks fast.

### Getting the Job Is the Easy Part

Once she is hired, the struggle begins. Yi Jun finds it hard to trust anyone, so he keeps testing her, and every time she falls short of his standards, he tells her to do it again. At one point, Jae Hee even resorts to sweet-talking a murder suspect to win him over. That is the “romance” half of the thriller already warming up.

### Suspicion Cuts Both Ways

The tension grows quickly. Jae Hee senses something is happening in the house that she does not know about, while Yi Jun turns a sharp look on her and demands to know who she is and who sent her. The big question is whether she can keep her double life as a detective intact.

For more drama previews and release news, browse our [K-drama coverage](https://technosports.co.in/) on Technosports.

## Why This Drama Is Worth Watching?

- **Workplace-meets-mystery:** A demanding boss and a secret agenda give every scene double meaning.
- **Fresh pairing:** Yim Si Wan and Seol In Ah headline the story as suspect and detective.
- **Slow-burn trust:** The teaser points to a relationship that builds through suspicion, not instant chemistry.
- **Interesting supporting cast:** Kim Jung Hyun as the family lawyer and Yeonwoo as the chairman’s secretary hint at more layers inside the Taegang Group.

If you like undercover plots with a romantic twist, this one is easy to add to your list. Check our [latest entertainment news](https://technosports.co.in/) and [what to watch this week](https://technosports.co.in/) for more picks.

## Frequently Asked Questions

Q1. When does Love in Disguise premiere?

It premieres on October 19 at 8:50 p.m. KST on tvN.

Q2. What is Love in Disguise about?

A former special forces officer goes undercover as a chaebol heir’s secretary to investigate him as a murder suspect, and the two slowly build trust amid suspicion.