# Lee Sang Yi Is Hunting a Sniper Housewife: Inside His A Bona Fide Killer Role

URL: https://technosports.co.in/lee-sang-yi-a-bona-fide-killer-role/  
Published: 2026-07-14  
Updated: 2026-07-14  
Author: Reetam Bodhak

Some detectives chase leads. Lee Sang Yi’s character chases an obsession. Ahead of the July 31 premiere of MBC’s *A Bona Fide Killer*, the actor opened up about stepping into the shoes of a relentless cop whose entire life revolves around catching one elusive assassin — who just happens to be his own city’s most ordinary-looking working mom.

## A Bona Fide Killer: Overview

| Detail | Information |
| --- | --- |
| Drama | A Bona Fide Killer |
| Network | MBC |
| Premiere | July 31, 9:50 PM KST |
| Lee Sang Yi’s Role | Lt. Lee Dong Jin, Violent Crimes detective |
| Co-star | Kong Hyo Jin as Yu Bo Na / “Kingfisher” |
| Genre | Action, pursuit, family, romance |
| Source Material | Original webtoon |

## Who Is Lee Dong Jin?

Lee Sang Yi plays Lieutenant Lee Dong Jin of Nambu Police Station’s Violent Crimes Unit 2 — a top-performing detective known for his high case-clearance rate and unwavering belief in delivering justice through the law. His singular focus: catching the legendary sniper known only as Kingfisher, secretly the alter ego of Kong Hyo Jin’s character, an unassuming sales team manager balancing a lethal double life.

![A Bona Fide Killer](https://technosports.co.in/wp-content/uploads/2026/07/abonsfsf-819x1024.jpg)

To describe Dong Jin, Lee Sang Yi picked three words — black wolf, mole, and tenacity — pointing to the character’s dark wardrobe, wolf-like focus when closing in on a target, and mole-like persistence in digging through cases. He also noted a personal parallel, saying his own drive to see a goal through to the end mirrors Dong Jin’s single-minded pursuit of Kingfisher.

## Why He Took the Role

Since the drama is based on an existing webtoon, Lee Sang Yi went into the project already knowing the twist — yet found the suspense compelling enough to sign on anyway. He also described consciously dialing back his usual playful energy to match Dong Jin’s serious, composed demeanor, a contrast the actor said required deliberate effort throughout filming.

*A Bona Fide Killer* blends action, family drama, and romance, marking Kong Hyo Jin’s first MBC drama role in [15 years](https://en.wikipedia.org/wiki/MBC_TV) — a notable return for the network’s drama lineup.

For more K-drama previews and cast interviews, check out [TechnoSports](https://www.technosports.co.in).

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### FAQs

**Q1: When does A Bona Fide Killer premiere?** The drama premieres on July 31 at 9:50 PM KST on MBC.

**Q2: Who does Lee Sang Yi play in A Bona Fide Killer?** He plays Lieutenant Lee Dong Jin, a determined detective hunting the sniper known as Kingfisher.