Haibara-kun no Tsuyokute Seishun New Game Episode 10: Band of Misfits

Episode 10 of Haibara-kun no Tsuyokute Seishun New Game assembles an oddball band. Serika's honesty pushes Natsuki and fellow misfits toward the cultural festival.

2026-06-06Sensei7 min read
Haibara-kun no Tsuyokute Seishun New Game Episode 10: Band of Misfits

The Band Comes Together One Oddball at a Time

Something about the way Serika casually drops “I think I like Natsuki” at karaoke, then corrects herself to “his singing,” sets the tone for this entire episode. She is not being coy. She just says exactly what she means in the moment, and the social awkwardness of it barely registers for her. That bluntness is what makes her the perfect person to drag Natsuki out of his romantic paralysis and into something completely different.

Episode 10 is the band formation episode, and it moves with an efficiency that surprised me. We get the drummer and the bassist in a single stretch, but the show does not treat either recruitment as a box to check. Each one adds a distinct flavor of teenage insecurity to the lineup, and the result is less a supergroup than a support group for kids who could not quite find their place.

Serika’s Relentless Honesty

What struck me most about Serika this episode is how her lack of filter functions as a kind of generosity. When she tells Natsuki she thought he would keep up with her if she tried her hardest, she is not guilt-tripping him. She is stating what she genuinely believes about him. Coming from almost anyone else, that level of directness would feel like pressure. From Serika, it lands as trust.

The guitar lesson scene in the club room is the quiet center of the episode. She corrects his F chord (“Your first finger needs work”), and Natsuki admits his fingers do not move well anymore. Then she smiles, and it is the first time we have seen her expression soften like that. Natsuki even points it out: “I’ve never seen you smile like that before.” Her answer, that she gets hyped up talking about music, tells you everything about where her emotional life actually lives. The guitar is her voice. She literally says as much: “The sound of the guitar is the only way I can express myself.” That line could sound overdramatic from another character. From Serika, who deadpanned her way through building sandcastles at the beach, it feels earned.

The moment gets interrupted by Iwano-senpai walking in and assuming Natsuki is her boyfriend. Serika does not bother to correct him. Natsuki’s internal “It’s kind of a problem for me, though” is exactly the right level of flustered. She does not care about the rumor. He does, just a little. That gap in their social awareness is going to be funny going forward.

Iwano-senpai and the Deadline

Iwano’s deal is the kind of pragmatic tragedy that high school stories do well. He wants to play drums. He is good enough that Serika specifically sought him out. But his parents are doctors, he has to become one too, and he knows he is not smart enough to juggle both. So the drums lose.

What I appreciate is that the show does not frame this as villainy. His parents are not on screen, and nobody rails against unfair expectations. Iwano just states the facts. He looks pained while doing it, and Serika sees right through him. “That’s why you look so pained.” She does not try to change his life plan. She offers a compromise: one last run, just until the cultural festival. Give it everything for six weeks and then walk away clean.

Is that actually possible? Probably not. If the band clicks, the idea that Iwano will simply hang up his sticks feels optimistic at best. But that unresolved tension is what makes the arrangement interesting. He is not a reluctant prodigy being saved by music. He is a guy making a calculated choice to have one good memory before buckling down. The show respects that choice without romanticizing it.

The high-five moment after he agrees is wonderfully awkward. Serika puts her hand up, Natsuki fumbles through it, and you can feel how new this whole dynamic is for everyone involved.

Shinohara-kun Gets Seen

The bassist search resolves in a way that feels almost too convenient until you remember this is a show about second chances and overlooked people. Shinohara-kun has been working at the same family restaurant as Natsuki. He has been in the same music club as Serika. Nobody noticed him. He describes himself as “basically invisible” multiple times, and the show lets that land without turning it into a joke.

Natsuki’s reaction when Shinohara mentions he plays bass is the biggest laugh of the episode. “Yes! A bassist fell into my lap!” He says it out loud, in front of his coworker, with zero irony. Shinohara’s bewildered “Am I in trouble?” is exactly how that kind of outburst would land on someone who already feels unseen.

The recruitment pitch is gentle but effective. Serika and Natsuki do not try to convince Shinohara he is secretly amazing. They just point out that he clearly wants to play in a band, since he got a job specifically to afford gear, and that he can decide after trying. That is the same logic Natsuki applied to himself earlier in the episode, when he realized he was looking for reasons to say no out of fear. Shinohara’s tentative “Would it be okay if I tried playing with you?” is the sound of someone taking the smallest possible step toward something they have wanted for a while.

A Band of People Who Could Not Quite Fit

The lineup is complete, and the common thread is almost too on the nose. Serika is the odd one out in the music club because her motivation level does not match anyone else’s. Iwano is the drummer who already said no once because he cannot commit beyond the festival. Shinohara has been invisible in the same club for over a year. Natsuki gave up guitar before ever getting good, and only picked it back up because someone finally asked.

This is not a band of prodigies. It is a band of people who were waiting for permission. Serika gave herself permission ages ago, which is why she can extend it to everyone else. The way she says “Courage alone can change the world” could be a throwaway line. Coming after eight episodes of watching Natsuki slowly find his footing through small acts of bravery, it lands as the thesis of the show so far.

Namika’s brief appearance is a nice reality check. She assumes Natsuki bought a guitar because he watched an anime, immediately predicts he will quit, and then pivots to genuine curiosity when she realizes he is serious about the cultural festival. She is the voice of the sibling who has seen every hobby come and go, and her grudging “Cool, cool. I’ll go watch if you’re playing” is about as warm as she gets.

That First Session

The episode ends on the four of them playing “Taisetsuna Mono” by Road of Major, a song choice that feels deliberate for a show about making the most of a second youth. Shinohara’s stunned “That was actually us playing, right?” is the moment the episode has been building toward. He has been invisible. Now he is in a band, and the sound is real.

Natsuki’s final internal line, “This is awesome!” matches mine. The episode earns that reaction by taking the band formation seriously without inflating it into something grandiose. Serika said they would change the world with their music, and maybe that is ridiculous. But for Shinohara, for Iwano, and for Natsuki, the world already shifted a little just by having a place to play.

The romance threads are still there in the background. Hikari’s phone call shows she is processing her feelings and supporting Natsuki’s new direction. But this episode wisely lets the band take center stage. After so much romantic confusion, watching Natsuki channel his energy into something tangible feels like a relief. The kid needs a win that does not involve triangulating his feelings for two different girls.

Six weeks until the cultural festival. That is not much time. But for a band built on borrowed time and quiet desperation, it might be exactly enough.

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23 days ago

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