Study Group
🎬 TVING · Viki · VIU
⭐ 8.9 / 10 MDL
🔞 18+ · Violence & Profanity
📋 Drama Overview
Everything you need to know before you hit play.
🔥 Action Must-Watch
Viki
VIU
Yusung Technical High School has a reputation — and it’s not a good one. Nicknamed the “school for future criminals,” it’s the kind of place where fists talk louder than textbooks and nobody expects anything from anyone. Yoon Ga-min doesn’t fit the mold, not because he’s any good at studying, but because he refuses to accept the ceiling everyone else has accepted. He wants to go to university, a goal so absurd for a Yusung student that even saying it out loud earns him laughs.
His only real talent? Fighting. And not just scrapping — Ga-min moves like someone who’s spent years mastering techniques that belong more in an anime than a Seoul classroom. When he forms a study group with a handful of reluctant classmates, the path to college quickly turns into something else entirely: a front line against the violence, corruption, and organized brutality that has made Yusung what it is. Into this chaos arrives Lee Han-gyeong, a temporary teacher with her own hidden history — and her own reasons for wanting this school to be something better.
10 / 10 ✅ Completed
⚡ Quick Verdict
One box. Everything you need to decide.
· MDL Score · 50,019 ratings
▶ Official Trailer
🎭 Cast & Characters
The faces behind Yusung Technical High School’s most unlikely study group.

Lead

Lead

Antagonist

Antagonist

Supporting

Supporting
📺 Episode Guide
Spoiler-light recaps — every episode of Study Group Season 1.
✍️ KDramaWorlds Editor’s Take
Our honest read on why this drama is worth your time — and who it’s for.
Hwang Min-hyun has done idol-actor roles before — charming leads in shows built around his face. Study Group is something different. Yoon Ga-min is a fully physical performance: the nunchaku sequences, the fire stunts, the sheer comic timing of a boy who studies with the same intensity he brings to snapping someone’s arm. He performs all of it himself, and the camera is honest about that. What makes it work isn’t just the athleticism — it’s the sincerity. Ga-min wants to study. He genuinely, desperately, almost pathetically wants to go to college. That single straight-faced motivation, played completely seriously against the absurdist chaos around it, is what separates Study Group from every other school brawler in the genre. If you enjoyed Weak Hero Class 1, this scratches an entirely different itch — funnier, louder, and twice as unhinged.
The show’s biggest divisive element is its tonal range — and depending on your appetite, it’s either the best or worst thing about it. Episodes one through five are almost purely fun: escalating fights, increasingly unhinged school politics, the kind of action choreography that makes you pause and rewind. Then the Yeon Baek gang arc tightens everything up, a murder charge lands, and Study Group briefly becomes a grittier drama than it advertised. Most viewers go with it. Some find the gear change jarring. The finale skews back toward warmth and lands soft — a few plot threads get tied up faster than they deserve, and Han-wool’s final confrontation asks you to accept some logic gaps. None of it derails the landing. The action DNA is closer to Bloodhounds (Season 1) than anything else in recent K-drama — relentless, kinetic, committed to the bit.
The supporting cast is what quietly elevates this beyond its premise. Shin Su-hyun’s Ji-woo, Gong Do-yu’s Lee Joon, the entire found-family dynamic that assembles by episode five — these aren’t just extras in Ga-min’s story, they’re the reason the finale hits. Study Group is the rare school action drama that cares as much about who these kids are as what they can do. Season 2 has a lot to live up to.
Anyone who wants school drama with actual stakes and zero love triangle
Viewers who want anime-level fight choreography in live-action form
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