Isekai Quartet Season3 Episode9: Chaos, Music, and That Button We All Know Is Useless

If you haven’t watched Isekai Quartet Season3 Episode9 yet, drop whatever you’re doing and hit play—this episode is the chaotic crossover fun we all needed. Titled “Get Closer! Music Festival,” it takes our favorite isekai characters and throws them into a battle of the bands (orchestras, technically) that’s equal parts hilarious and surprisingly heartfelt.

First off, who saw a music arc coming? Not a single soul—one fan on MAL even said it wasn’t on their bingo card, and I’m right there with them. The episode kicks off with Class1 deciding to enter the festival, and the instrument choices are chef’s kiss. Kazuma grabs a cello (wait, someone corrected a fan who thought it was a violin—oops), Albedo is practically bouncing off the walls at the idea of giving Ainz private lessons (girl, calm down—your succubus fangirl mode is showing 😂), and Cocyutus uses all his arms to play the piano. Genius use of his design, honestly.

But the real chaos starts with Class2. Shadow Garden, who’s been lurking around like lost edgelords, now thinks Class1 is evil (thanks to some next-level miscommunication). So now we’ve got a full-on rivalry: Class1 vs Class2, and Class2 has Reinhard—hello, OP alert! Fans are losing their minds over this. Is Reinhard gonna carry his class with divine protection of perfect pitch? Or will he throw the competition to be nice? Either way, it’s gonna be wild.

And let’s talk about that button. The one that’s supposed to send the winning class back to their original world? Let’s be real—no one believes it works. Half the comments on MAL are like, “That button’s useless” or “It’s gonna break before anyone presses it.” Subaru wanting to go back was a shock, though—who knew he missed his old life that much? And Kazuma not being totally selfish? Wait, is he sick? Did someone swap his personality with a nice person?

The funny moments are endless. When Subaru tried to make a fake ID and someone pointed out his fatal flaw (he messed up his own name—dude, really?), I laughed so hard I spilled my soda. That’s the kind of dumb, in-character joke that makes Isekai Quartet so great. Then there’s the line, “It wasn’t a harem story?”—relatable, because let’s be honest, Konosuba’s harem status is more complicated than a math test. And Albedo’s line about private lessons for Ainz? She’s so far in fangirl mode she’s practically in another dimension.

But it’s not all jokes. There are real feels here too. The characters sit down and talk about whether they want to go back to their original worlds. Tanya’s conflict between her military duty and desire for comfort? Deep. Subaru’s longing for his old life? It makes you see him in a new light. Even Kazuma has a moment where he’s not just being a jerk—shocking, I know.

Fans are split on Shadow Garden’s presence—some say they’re ruining the vibe, others love the extra chaos. But honestly, the more characters the merrier, right? The misunderstanding between Shadow Garden and Class1 is peak comedy, and I can’t wait to see how it plays out in the festival.

And let’s not forget the tease at the end—Shadow playing the piano. Oh, that’s gonna be epic. Fans are already hyped for next episode, and I’m right there with them. Will Shadow’s piano skills be as cool as his fight scenes? Probably.

Another thing fans are debating: Are the characters duplicates or originals? Ainz mentioned something about being copies earlier, but does it matter? As long as we get more Albedo fangirling and Kazuma’s sarcasm, I’m happy.

Final thoughts: Episode9 is a perfect mix of chaos, humor, and heart. It’s exactly what we love about Isekai Quartet—taking beloved characters, putting them in silly situations, and letting their personalities shine. If you’re under 20 and love isekai, this episode is for you. It’s casual, relatable, and full of the kind of jokes that make you snort-laugh in public.

So go grab your snacks, sit back, and watch Episode9. You won’t regret it. And if you do? Well, that’s your loss—because this music festival is just getting started. 🎶

P.S. That line “You can’t spell slaughter without laughter”? Pure genius. 10/10 would quote again.
P.P.S. Reinhard is gonna win the festival. Fight me. 😉