Kong Hyo Jin is proving once again why she’s one of Korea’s most reliable leading ladies. Her new MBC action drama, A Bona Fide Killer, just premiered to a strong reception, topping its time slot right out of the gate.
A Bona Fide Killer: Premiere Numbers That Matter
According to Nielsen Korea, the show’s first episode claimed the No. 1 spot across all channels in its time slot, pulling in a nationwide average rating of 7.4 percent — a solid launch for any new drama.

| Quick Facts | Details |
|---|---|
| Network | MBC |
| Lead | Kong Hyo Jin |
| Premiere Rating | 7.4% (nationwide, No. 1 in time slot) |
| Source Material | Popular webtoon of the same name |
| Genre | Action Drama |
What’s The Story About?
Based on a hit webtoon, the drama follows a working mother juggling an extraordinary double life. Kong Hyo Jin plays Yu Bo Na, an unassuming sales manager at Durumi Electronics by day — and secretly the legendary sniper known as “Kingfisher” the rest of the time. It’s a premise that blends workplace comedy with high-stakes action, giving Kong Hyo Jin plenty of range to work with.
Webtoon-to-drama adaptations continue to dominate Korean television, a trend closely tied to the booming popularity of the webtoon format as a source for hit K-dramas and films.
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The Takeaway
With a strong ratings debut and an intriguing premise pairing domestic life with lethal secrets, A Bona Fide Killer looks set to become one of this season’s must-watch dramas.





