Under the Gun
📋 Drama Overview
Start here — the basics before the first scene.
Go Gun doesn’t have time for romance — not with part-time shifts stacked after school and a father who gambled away the family’s savings hanging over every decision he makes. Then his sister Jun-hee is diagnosed with an illness the family can’t afford to treat, and Gun does the one thing he swore he’d never do: sit back down at a poker table, this time with the Korean Poker League’s real money on the line.
Cha Se-young, a transfer student from LA who lands in the seat next to him, has no idea she’s about to fall for someone who’s quietly betting his future on a card game. Under the Gun spends six fast episodes proving that a poker tournament, a courtroom, and a school romance can all be part of the same story — as long as the story never forgets which one actually matters.
⚡ Quick Verdict
The short version — everything that matters, boxed up.
▶ Official Trailer
🎭 Cast & Characters
The small cast carrying a family’s entire future on one poker hand.
Lead
Lead
Supporting
Supporting
📺 Episode Guide
A spoiler-light refresher, episode by episode.
🏁 Ending Explained
Spoiler territory from here — the finale, fully unpacked.
What actually happens Go Gun makes it to the final table of the 2022 Korean Poker League championship against Joo Tae-ha, the one player who’s beaten him before. The odds are stacked against him for most of the final hand — and he wins anyway, taking the 1 billion won prize and the title.
What the money actually fixes The win isn’t framed as a redemption of Gun’s father’s ruined poker career, and the show is smart not to force that bow on it — it’s framed entirely around Jun-hee. The prize money pays for her leukemia treatment outright, which is the only stakes that ever really mattered across six episodes despite all the tournament build-up.
The confession at the beach With the tournament and the court case both behind him, Gun goes back to being an ordinary high schooler — and finally stops pushing Se-young away. They meet at the beach, say what they’ve both been avoiding saying, and share a kiss that the whole season had been quietly building toward under the poker plot.
Why the noir framing works anyway Under the Gun spends its runtime marketing itself on underground card games and a courtroom subplot, but none of that is really the engine — it’s a family-devotion story wearing a poker thriller’s clothes. That mismatch could have felt like false advertising. Instead it makes the ending land softer than the premise promised, because the show was never actually interested in the gambling underworld for its own sake.
The KDW verdict For six 22-minute episodes, Under the Gun packs in a court case, a tournament arc, a love triangle, and a terminal illness, and somehow doesn’t feel rushed doing it — mostly because it never pretends any of those threads matter more than Gun’s reason for playing at all. It’s a small show that knows exactly how big it’s allowed to be.
✍️ KDramaWorlds Editor’s Take
Here’s our honest verdict, and who’s going to love it.
Under the Gun’s real subject was never the Korean Poker League — it’s what a teenager will quietly carry so the people he loves don’t have to. That’s the same engine that made Racket Boys work: an underdog competition plot that’s secretly about a family trying to hold itself together. Zuho plays Gun’s exhaustion as the default setting, not a mood, which makes every scene where Se-young actually breaks through it feel earned instead of scripted.
The underground-gambling half of the show, and Gun’s brief run through the court system, give it a rougher edge than a typical school romance — closer to the moral grey zones Weak Hero Class 1 lets its students operate in than the sunlit romance the poster promises. Seo Ji-won’s Tae-ha is written as a rival worth taking seriously, not a plot obstacle, which is more than most six-episode dramas bother to do with their second male lead.
Six episodes at 22 minutes each is a real constraint, and it shows in how fast the court case resolves and how little time Ji-min gets outside of being Se-young’s sounding board. But the compression also means nothing overstays its welcome — by the time the beach scene arrives, it’s earned its two minutes instead of stretching them into twenty.
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