SI VIS: The Sound of Heroes S01E10 Review: New Member Drama & Xenos Teases

Okay, let’s cut to the chase—SI VIS: The Sound of Heroes Episode 10 (“The Sixth SI-VIS Member”) dropped, and school being back isn’t the only chaos going on. If you’re here for music-fueled hero vibes, squad drama, and tiny hints at the big bads (looking at you, Xenos), this episode’s got your back—even if it feels like a setup for something bigger. Let’s dive in, shall we?

First off, the core conflict: Nagi’s joining the team? Wait, no—wait, Rui’s training her, but Kyoya is straight-up fuming when he finds out she’s the sixth SI-VIS member. And honestly? I get it. Change sucks, especially when your squad’s been tight all season (who hasn’t had that friend who hates new people in the group?). But why is Kyoya so protective? Is it just about the team dynamic, or does he know something we don’t about Nagi? Fans on MyAnimeList are split—some think she’s being forced into it, others wonder if she actually wants to be there. Either way, that tension between Kyoya and the rest of the group is chef’s kiss for drama.

Let’s talk about Rui and Nagi’s training scenes. Studio VOLN’s animation shines here—those quick, fluid moves? Perfect. Rui’s tough but patient, which makes sense (she’s the team’s voice of reason, right?). But Nagi? She’s still finding her footing. Is she ready to fight alongside SI-VIS? The episode leaves that question hanging, and honestly, that’s a good thing—it keeps us guessing.

Then there’s the Xenos tease. Oh, the Xenos. Someone in the fan comments compared them to locusts that “consume everything to survive.” Chills, man. Chills. We don’t get a huge fight scene here, but those tiny hints about their motives? They’re enough to make you lean in. And Siren—our mysterious villain? Fans are begging for more backstory. Who is she? Why’s she targeting SI-VIS? The episode doesn’t answer that, but it’s clear she’s going to play a bigger role later.

But let’s not sleep on the normal stuff. After that attack earlier in the season, the class has way stronger bonds now. It’s nice to see the characters outside their hero personas—like, yes, they’re saving the world with concert energy (still the coolest power ever), but they also have to deal with homework and friend drama. Relatable, much? That mix of normalcy and heroics is what makes SI VIS stand out.

Over on MyAnimeList, people are calling this a “buildup episode.” And yeah—we don’t get a big climax here, but we’re setting up Nagi’s arc, Kyoya’s inner conflict, and more clues about the Xenos. Some fans are a little impatient (wanting more action), but others love the character depth. I’m in the middle—yes, I want to see the team kick Xenos butt, but I also care about why Kyoya’s so against Nagi joining.

Also, let’s mention the band’s growing reputation. SI-VIS is getting more popular, which means more crowd energy for their battles—but also more pressure. Imagine being a student, a pop star, and a hero all at once? That’s a lot. The episode touches on that, and it’s a nice reminder that these characters are just kids (well, young adults) trying to do the right thing.

So, is Episode 10 worth watching? Absolutely. Even if it’s a setup episode, it’s full of heart and tension. The animation’s great, the character moments hit, and those Xenos hints? They’re enough to keep you coming back for more. If you love music, hero teams, and that good old “will they/won’t they” about new members, this one’s for you.

Final thought: I can’t wait to see if Nagi proves herself to Kyoya, and what’s next for the Xenos. Go watch it on Crunchyroll—you won’t regret it (even if you leave with more questions than answers). Until next time, keep jamming and saving the world, SI-VIS! 🎶✨

P.S. Shoutout to Aniplex and Sony Music for the bops—those concert snippets are always a vibe. And Studio VOLN? Keep those action scenes coming. We need more!
P.P.S. If you’re on the fence about Nagi—give her a chance. She might surprise you. 😉