Weak hero Class 2- Episodes 3-4

Friendship, Fights, and Flower Pots: Trouble Finds Eunjang

Episode 3 of Weak Hero Class 2 wastes no time. We open with Hu-min — aka Baku — laying down the law. No fights in uniform. Period. The bullies back off, and Hyun-tak swallows his pride to apologize to Si-eun for the misunderstanding. But in true Si-eun fashion, he just walks away, saying more with silence than any words could.

Jun-tae catches up and tries to offer comfort, only to be hit with Si-eun’s cold honesty: the rumors aren’t rumors. He didruin someone’s life. That’s why he avoids fights. That’s why he’s so careful. And it hits hard.

The next day, Hu-min is back at school post-suspension — upbeat, loud, and absolutely unbothered. His return is chaotic in the best way. In class, he and Hyun-tak discuss a potential practice match with Ganghak High — who apparently play basketball like it’s UFC.

But before the game talk can go anywhere, Hu-min, Hyun-tak, Jun-tae, and Si-eun are dragged into the office. Why? Because Hyo-man’s gang didn’t show up to school and the teachers assume they beat them all up. Hu-min, in all his clueless glory, calls it a “false acquisition” — bless him. The punishment? Weekend volunteer duty. No debates allowed.

While sweeping floors and scrubbing windows, Jun-tae fills Si-eun in on the bigger picture: the Union, a school-gang syndicate made up of toughs from Yeoil, Ganghak, Yeosung, and more. Hyo-man wanted in, which is why he was stealing phones — trying to buy his way into the big leagues. But Hu-min had been unknowingly blocking their progress by keeping Eunjang students out of fights. So now the Union's pissed.

The Union retaliates by robbing and beating any kid in an Eunjang uniform. Hu-min? He’s had enough — and wrecks every Union member he runs into. Apparently, nobody in the Union could touch him.

Naturally, the Union blames Hyo-man for the failure to control Eunjang. He gets dragged to meet the top dogs, including the cold, calculating Baek-jin. Dong-ha argues that with Hu-min around, they’ll never control Eunjang. And somewhere in the background, the dangerous Seong-je listens in — quietly plotting.

Back at volunteer duty, things are surprisingly wholesome. Si-eun begins bonding with the others, and Hu-min’s weird antics plus his constant bickering with Hyun-tak start to crack Si-eun’s icy exterior. He even smiles. But peace doesn’t last. An accidental sauce spill on Si-eun’s hoodie sends him to the restroom to clean up — where Seong-je is waiting.

Seong-je snaps a photo of Si-eun like a predator tagging his prey. When Si-eun stares him down without flinching, Seong-je tries to throw a punch. Si-eun dodges like a pro, eyeing a flower pot just in case. Seong-je clocks that and backs off. But on his way out, he runs into Hu-min and drops a flirty insult about Hu-min and Baek-jin’s “lover’s quarrel.” This guy’s weirdly unhinged and theatrical.

Meanwhile, we get a closer look at Baek-jin — top student, academic star, and secretly running the money side of the gang business like a full-on CEO. Hyo-man, thinking Baek-jin is just a nerd, tries to ambush him with backup. Big mistake. Baek-jin destroys them — casually and efficiently — proving that brains and fists aren’t mutually exclusive.

Later, post-volunteer bonding leads to a chicken dinner at Hu-min’s dad’s restaurant. But Si-eun skips out, visiting Su-ho at the hospital as always. He updates Su-ho through a written message — until his peace is shattered again. Seong-je is there. Outside Su-ho’s room.

Si-eun loses it. Seong-je, ever the snake, taunts him: “You’re the one who put him in that coma.” He then suggests they step outside — not wanting to wake Su-ho. “You’re exactly the kind of kid I like to beat up,” he says with a calm grin.

And just like that, Episode 3 ends on a chilling note.

Warning Shots, Rooftop Brawls, and a Whole Lot of Blood

Episode 4 of Weak Hero Class 2 cranks everything up — the stakes, the fights, and the emotions. If the last few episodes were the build-up, this one’s the explosion.

We pick up right where we left off: Seong-je casually invites Si-eun to "take a walk." That walk ends at a bowling alley (because, of course), where Si-eun’s led into the lair of Baek-jin — the Union’s brainy, calculating leader. Baek-jin doesn’t even look up when Si-eun walks in. But Si-eun isn’t here for small talk. He’s here to drop a warning.

Calmly, coldly, Si-eun tells Baek-jin: if any of his people ever go near Su-ho again, he’ll kill them all. No threats, no theatrics — just facts. And before walking out, he even solves Baek-jin’s math problem. Iconic.

But Baek-jin plays dirty. That night, he sends goons to set up Hu-min’s father — using fake IDs to buy alcohol at his restaurant and then reporting him to the police. Just to stir the pot.

The next day, Si-eun tells Hu-min he’s done. No more hanging out, no more getting involved. He wants peace, and he’s out. But Hu-min has his own mission — he lies about having a date and heads off to confront Baek-jin. Meanwhile, the Union gang gears up for chaos. Their target? Hyun-tak, Jun-tae, and Si-eun.

Si-eun gets lucky — the Ganghak boys let him pass, thanks to Baek-jin’s warning to leave him alone. Jun-tae and Hyun-tak? Not so lucky. Seong-je corners them with his crew. Hyun-tak tells Jun-tae to run. He does, barely, long enough to call Si-eun — but the gang catches up to him mid-call. Si-eun hears everything... and turns right back around.

Meanwhile, Hu-min storms into Baek-jin’s bowling alley office. Baek-jin tries to pitch him on joining the Union and turning it into a post-graduation money machine. Hu-min’s response? “You’re an idiot.” Baek-jin calmly replies, “No, you are,” and Hu-min realizes he’s been played — Baek-jin lured him away so his crew could ambush Hyun-tak. Hu-min wants to fight, but holds himself back. For now.

He mows through the Union goons on the way out like they’re cardboard cutouts. Baek-jin lets him leave — or so it seems. Hu-min corrects him: he chose not to kill everyone. Make no mistake.

Back on the rooftop, things are brutal. Seong-je is gleefully beating Hyun-tak into the ground, live-streamed like a twisted flex. Jun-tae is helpless on the sidelines. Seong-je starts lining up a victory photo, when Si-eun shows up.

And then it’s on.

Si-eun doesn’t hesitate. He dives in, and the fight with Seong-je is raw and vicious. Seong-je’s a stronger puncher, but Si-eun fights like a cornered wolf — relentless, strategic, furious. He uses Seong-je’s own glasses as a weapon, snapping the frame and stabbing him in the foot. Yeah — Si-eun is done playing nice.

Even as Seong-je pounds him, Si-eun keeps getting back up. He never flinches. Seong-je’s hits land hard, but Si-eun’s eyes never stop burning. Eventually, both are bloodied, barely standing — until Si-eun preempts Seong-je’s finishing blow and takes them both down.

As sirens wail in the distance, Hu-min finally reaches the rooftop. Si-eun, dazed and barely conscious, mistakes him for Su-ho. He mumbles an apology for getting into another fight… then passes out in Hu-min’s arms.

DramaZen's Opinion

Si-eun’s Breaking Point, Hu-min’s Unhinged Energy, and the Bloodiest Rooftop Yet

Let me start by saying this: if Weak Hero Class 2 wanted to test how much emotional and physical chaos I could handle in two episodes — they succeeded. Episodes 3 and 4 had me yelling at the screen, clenching my jaw, and literally whispering “no no no” like I was in the scene. This show is too good at making you feel everything.

Episode 3: "Let’s Get One Thing Straight, I Don’t Want to Fight You — But I Will"

We kick things off with Hu-min (a.k.a. chaos in human form) laying down the law: no fighting in school uniform. The way the bullies immediately back off when he says it? That’s authority. And while Hyun-tak apologizes to Si-eun for the misunderstanding, Si-eun just walks away like a ghost who’s seen too much. Cold. Perfect.

But what really hit me was the quiet moment between Jun-tae and Si-eun. Jun-tae tries to comfort him about the rumors, and Si-eun just drops the truth bomb: “They’re not rumors.” Oof. This show does emotional gut punches so well.

And then — boom — we’re pulled into the bigger picture: the Union. This isn’t just school bullying anymore. We’ve got inter-school gang syndicates, fake IDs, and scheming masterminds like Baek-jin, who literally ruins Hu-min’s dad’s restaurant to send a message. Petty and strategic? The worst kind of villain.

And let’s not skip over the volunteer bonding scenes. Hu-min and Hyun-tak’s bickering is sitcom-level hilarious, and watching Si-eun actually smile? Protect that boy at all costs. But peace doesn’t last, because Seong-je — Satan in school uniform — shows up and stalks Si-eun outside Su-ho’s hospital room. That final line?
“You’re exactly the type of kid I like to beat up.”
Shivers.

Episode 4: "I’m Calm, I’m Calculated, and I Will Break Your Face with Your Own Glasses"

This episode was a straight-up warzone.

It starts with Si-eun waltzing into Baek-jin’s office like a one-man army and threatening to kill everyone if they ever go near Su-ho again. Then he solves the guy’s math problem before leaving. The disrespect?? I was eating it up.

But Baek-jin plays dirty. He messes with Hu-min’s family and then baits him into a meeting just to keep him away while Seong-je and the Union gang hunt down Hyun-tak and Jun-tae. It’s a trap, and everyone falls into it.

Hyun-tak gets jumped. Jun-tae runs for help but gets caught. And Si-eun — who could have stayed out of it — turns back to fight.

Then… the rooftop.

That. Rooftop. Fight.

It’s one of the most intense scenes of the season so far. Seong-je is unhinged, live-streaming the beatdown like it’s content. Si-eun shows up and just snaps. He’s not just fighting Seong-je — he’s fighting years of bottled-up rage, guilt, and grief. And he’s using everything — even Seong-je’s broken glasses — to win.

Seong-je loves violence. Si-eun endures it. And that’s what makes this fight so terrifyingly good. Even after being brutalized, Si-eun’s glare never breaks. He looks like he’d rather die than back down.

The final moment? Sirens. Blood. Hu-min arriving. Si-eun confusing him for Su-ho. Whispering an apology. Then collapsing.

Heart. Broken.

Final Thoughts:

Episodes 3 and 4 are a turning point. Si-eun’s no longer the quiet genius watching from the sidelines — he’s stepping into the fire. And honestly? He’s becoming terrifying. In the best way.

Hu-min continues to be a scene-stealer. Jun-tae’s loyalty is shining. And Seong-je? I’ve never wanted a villain to get wrecked so badly.

If this is how intense the middle episodes are, I don’t even want to imagine the finale. I’m scared. I’m obsessed.

Also — rooftop fight of the year? Fight me.