A Complete Summary of the Original Ending of Married Woman Killer! Webtoon Plot, Characters, Gong Hyo-jin, Jung Joon-won

If you're curious about the ending of the original webtoon 'Married Woman Killer,' pay attention! I've summarized the webtoon plot, characters, and season-by-season endings for the MBC drama 'Married Woman Killer,' starring Gong Hyo-jin and Jung Joon-won 🔍

MBC Friday-Saturday drama Married Woman Killer, premiering on July 31st!! News that actress Gong Hyo-jin is making a comeback to MBC after 15 years I've noticed a flood of anticipation reviews pouring in 😭✨ Since it's based on a popular webtoon with over 170 million cumulative views, I've summarized everything from the original ending to the characters all in one place!

1. Basic Information

유부녀킬러 원작 결말 총정리! 웹툰 줄거리, 등장인물, 공효진 정준원
Genre Thriller, Action, Family, Crime
broadcast : Fri·Sat 9:50 PM / July 31–September 12, 2026, 14 episodes
production: Yoon Jong-ho (Sunjae on His Back and Run) · Kim Ji-hoon, Screenplay by Kim Eun-hee (Gold Spoon)
Original work: YOON·Geomdung Kakao Webtoon (Season 1 started in 2020, Season 4 currently being serialized)
Cast: Gong Hyo-jin, Jung Joon-won, Lee Sang-yi, and others / OTT Wavve · Coupang Play / Rated 15+

2. Plot

Yu Bona is the manager of Sales Team 3 at Durumi Electronics and a married woman in her fifth year, but her hidden identity is 'Kingfisher,' a sniper who targets and eliminates released violent criminals. The story begins on her first day back from parental leave, when she aims a gun at someone on the rooftop under the pretext of a client meeting. The core conflict revolves around her husband, Kwon Tae-seong, a social affairs reporter, who happens to become the assigned reporter for Kingfisher and gradually tracks down his wife's true identity.

3. Characters

Yoo Bona (Gong Hyo-jin) — Sales Team 3 Manager / Sniper Kingfisher

Kwon Tae-seong (Jung Jun-won) — Social Affairs Reporter, Bona's Husband

Lee Dong-jin (Lee Sang-yi) — Detective, Taeseong's best friend, opponent of vigilante justice ('Lee Dong-jun' in the original)

Kim Bong-pal (Sung Dong-il) — Sales Team 3 Manager, Specialist in Fake Accidental Deaths

In addition, Assistant Manager Ki Dae, Bong Tae-min, Go Young-gap, Yang Ye-sol (Sales Team 3), and mother-in-law Ok Seon-ja (Cha Mi-kyung) appear.

4. Original Ending (Spoiler Alert)

The original work is currently in its fourth season, so the final ending hasn't been revealed yet, but the flow of the seasons is as follows.

Season 1 : Oh Hyun-nam kidnapping plot, identity confirmed to colleagues
Season 2 Detective Lee Dong-jun (Lee Dong-jin) begins the full-scale pursuit
Season 3 Adoptive mother 'Mama' appears, husband Taeseong begins to be suspected, Lee Dong-jun heads to Kingfisher task force
Season 4 (Ongoing): Final Conflict with Mama, Entire Family at Risk

The crisis is at its peak as Mama, the boss of an overseas organization, attempts to turn Bona back into a ruthless killer, but the ongoing Season 4 is heading toward the conclusion of this conflict. A 'retirement ending' is being predicted as the most likely scenario, where Bona breaks free from Mama's pressure and returns completely to her family. 💡

5. Key Points to Watch in the Drama

The key points to watch are the on-screen chemistry between Gong Hyo-jin and Jung Joon-won, and how they will handle the weighty theme of private retribution! Since the detective played by Lee Sang-yi acts as a balancing force who does not condone Kingfisher's murders, I think this will be a work that delivers both a sense of catharsis and raises moral questions.

💡 Frequently Asked Questions (Q&A)

Q. Has the original webtoon been completed?

A. Not yet. Season 4 is currently being serialized, so the final ending is undisclosed.

Q. How many episodes is the drama, and when will it air?

A. It is a 14-episode series airing on MBC every Friday and Saturday at 9:50 PM from July 31 to September 12, 2026.

Q. What is Yubona's killer's name?

A. It's a kingfisher.

Q. Where can I watch the replay?

A. It is available on Wavve and Coupang Play.

Q. How does the original story end?

A. It is not confirmed, but it is highly likely that the story will conclude with Bona ending her showdown with Mama and retiring from her life as a killer.