Surprise, everyone!
We have a guest review today, by none other than our very own j3ffc! 🥳
Basically, what happened was, j3ffc wrote some very insightful remarks in one of our chat corners over on Patreon, specifically the October Deep Dive, and I loved what he had to say.
Not only is dear j3ffc an actual fan of J-rock, he even has experience interacting with geniuses in real life, and I could think of no one else who would be able to give us as informed an opinion on Glass Heart, as he. 🤩
Long story short, j3ffc’s very kindly beefed up his original comments, and here is his review! 🥳
Thanks so much, j3ffc, for sharing your thoughts and insights with us! 🥲
KFG ❤️
PS: If you’d like to sample more of j3ffc’s own brand of brilliance, please do make time to check out Dark (here!), the dream drama that he wrote last year, which was a legit labor of love (he even made a soundtrack for it!! 🤯).
Stuff I Liked and Stuff I Didn’t/Drama Rating
I knew what we were in for within the first 5 minutes of the show.
A punky-looking band, self-describing their sound as “aggressive”, dismissed its drummer, played by Yuuki Luna as Akane, our FL. She asked why, and they responded, “’cause we don’t like your sound. Your sound is too heavy.”
Now, no “aggressive” outfit worth their salt would ever complain about a drummer that was too heavy.
Except for the unlikely reason that this was a deliberate a signal that this first group of posers wasn’t worth their salt, it was already clear that this show would have only an intermittent relationship with logic.
But this led immediately into a thrilling sequence with drumming and manic keyboard playing in the rain. Indeed, seeing this in a preview drew me to the show in the first place.
Taken together, these scenes set up the rhythm for the entirety of the show: gorgeously shot music pieces, some emotionally affecting storylines, and quite a bit of unbelievable nonsense.
To be fair, this combination of cool and unbelievable is not uncommon in a lot of television produced anywhere, really.
My technique to enjoying shows like this is to take in the set pieces as they come and squint a bit when trying to tie it all together.
In this case, this meant things like ignoring how they could come up with an impromptu concert on a boat, or how a sophisticated railed circular camera crew could be assembled within minutes for an off-the-cuff streaming event, or….well, you get the point. There could have been a whole lotta head scratching going on.
But using my rose-colored not-worry-about-the-reality lens, I ended up enjoying the show for any number of reasons, in no particular order:
- A spunky relatable heroine, chasing her dream. I appreciated that she was nicely portrayed by real-looking person and not a model type.
- The LG (lead genius) role played with panache by the talented and charismatic Takeru Satoh (he was wonderful in First Love).
- The rest of the musicians in the show was well cast, especially Keita Machida as the groups world-weary guitarist (he’s, like, all of 35 years old in real life). The most meaningful drama in the show arose through between the musicians in the various groups and they felt more real than not. The band members had interesting back stories: to quote from The New Yorker: “Musicians lead complicated lives.”
- The love letter to music itself that permeated the show, not only through the leads but through other members of the cast. There was a nice depiction of how the non-musician professionals were drawn to this world, and I would have like it had they been used more of in the story (a couple of key characters went MIA for a few episodes only to appear out-of-nowhere in the finale).
- The character of Toya (a competing rocker) was particularly well-written and -acted, and I quite liked the nice reveal about him made half-way through the show.
- Putting some of the less realistic aspects of the performance stuff aside, the depictions of the music making were quite solid and appealed to my inner music geek. I want their studio.
- There was a good undercurrent of the power of music and forgiveness and commitment, although a lot of that became hard to follow, to the degree I am challenged to come up with a single theme of the show. Taking suggestions here. 👉
- The settings looked great with just the right amount of seedy for the story.
I was less willing to forgive a lot of the mixed messages about the male lead’s mysterious health issues (MHIs).
He has to make music to live? But he can’t make music b/c of the MHIs? My head hurts trying to think about it, but it overall seemed like a pretty cheap way of ramping up the drama-drama.
And is it really necessary for multiple people to always fall for the FL? I didn’t see this really as a romantic melo, so for me, the answer would have been a firm “no”.
Overall, the episodes were short and entertaining, and whizzed by (perfect for my li’l brain coupled with sketchy sleep habits).
The Music
Unlike a lot of folks who’ve posted about this show on KFG’s Patreon, rock IS my favorite genre of music. I listen to a lot of hard J-rock and have a pretty well-developed pop sensibility.
A welcome trend now is the presence of highly talented hard rock/metal bands led by women, like Band-Maid, Nemophila, Gacharic Spin, and Koiai (all recommended). So, I was hoping for a solid OST.
In the end, I thought most of the music was just about OK.
I have since listened to the OST a handful of times, as it often takes me a while to really latch on to new music, and all of the songs are pretty listenable, with a few playlist worthy.
I particularly liked “Crystalline Echo”, “Play Out Loud”, “A Song for Us to Sing”, and “Lucky Me”.
That being said, I appreciate the challenge of coming up with suitable original music for a music-oriented piece of drama, made especially hard when it’s supposed to be the work of a music genius (more on that in a bit), and I think the show’s songwriters did an honorable job of this.
There’s a lot of buzz about how the actors did their own playing and that’s impressive.
It seems likely that there may have been some studio additions (it’s hard for me to tell even from the live performances, given the possible use of backing tracks or hidden musicians), but even if so, you gotta give it up to the cast for having actual musical abilities and certainly a great deal of charisma.
It takes guts to get up and perform in front of other humans. The various live videos are fun, including a collab featuring Takeru Satoh with J-rock royalty One OK Rock.
I did get a kick out of the fact that whenever the writer wanted us to be impressed by the musicians’ abilities, they always had them play frenetic modern jazz that had nothing to do with the bands’ actual style.
On the Depiction of Genius
A key plot point but no spoiler, the story centers around a genius musician who is driven to create greatness, and whose world intersects with that of more ordinarily talented drummer who’s just “gotta be part of that pop music thing” (apologies to Marshall Crenshaw).
We know he’s a genius because the show tells us. Again and again. I mean, like every five minutes someone literally uses the word “genius” to describe our ML.
A fun guessing game is to think of which genius the writer might have used for inspiration (the show is based on a novel by Mio Wakagi).
I have decided upon Sting as the model, who is the real deal and is purportedly hard to work with, if not necessarily a goofball. Actually, Sting strikes me as kind of an anti-goofball.
It helps that the main instrument of both the GL and Sting is the bass (but both – remember that they’re geniuses — can play anything).
The show leans extremely heavily into the tortured artist depiction of our (anti)hero, rendering him as subject to compulsion and a ton of unconventional behavior. There would be practically no story here without this aspect.
I hate this trope. Moreover, I think a better drama could well be written by toning down these aspects of a purportedly brilliant character. But that’s not this show.
One of the reasons I dislike this sort of thing arises from my personal interactions with people who are geniuses in real life.
I want to emphasize that this is a very small number and that I do not use the word lightly, i.e., to just mean “people who are really smart and good at something”.
In my field, at least, I feel qualified to judge who is an actual genius, which requires a high level of creativity and the ability to think about things in a truly original way.
If you met most of these people, you wouldn’t think that they are all that different from anyone else. In fact, far from having wildly off mannerisms, most seem pretty well adjusted and lead reasonably happy lives.
The one thing that they do have in common is a tendency to be very committed to what they do, which comes off more as being a workaholic rather than being a manic crazy person who is incapable of interacting with other, non-genius types, in healthy ways.
This led to one aspect of the story that I did appreciate.
The show explored a number of ways that geniuses connect with ordinary humans, and the mixture of awe/wonder/sense of personal inadequacy with which the ordinary humans regard geniuses.
(I know a lot about the latter, and have written about this elsewhere, re “Do You Like Brahms”.)
Those interactions can be laced with surprise.
In this case, our LG not only was able to appreciate the abilities of his less-gifted colleagues but was also very aware of how his own artistic superiority affected those around him. Really, really nicely done in this patchwork quilt of a show.
THE FINAL VERDICT
Overall, an enjoyable watch if you squint just the right way. Liking rock isn’t a must but it sure does help. 🤘
FINAL GRADE: B+
~j3ffc
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Excellent observations, I related to a lot of the viewpoints in your review! I watched this series,then all the making of videos before reading others reviews of this show, and I was surprised how different my interpretation of some of the themes were than most others had listed. I got that Akane was coming into an already moving story of two brother’s relationship, both musically gifted (Overchrome billboards don’t pop up in Tokyo cause your an amature musican) previously influenced by different ‘mother wounds’, both expressing this in different ways. Naoki has a more positive, grateful, leadership outlook (lacking in female connection department though), and adept at subtlely pulling in or pushing away people crossing the line into abusing his talents. Toya, through the initial chapters at least, was direct, competitive, stood in your face, like he was trying unbalance you to show him the holes in your armor, the mirror of Naoki. There were themes of the many different kinds of platonic, brotherly, and famial love, romance was barely there towards the end. Toya’s multiple interactions with Akane were, to me, him being jealous of the muse Naoaki had found, and wanted to steal her, as technically her drumming style of “insensitive” would go great with Overchrome, who were lacking a drummer. In Ep.2, when Akane hears the first notes of Toya playing Ravels Sonitine No2 in the lobby of the recording studio (which was written as part of a sonata for a competition that Ravel was the only one who entered into and still didn’t win as his style was considered too rebellious at that time. Its also the song the younger version of Toya was tryi g to learn when he smashed his fingers with the piano cover) she is basically goaded into an audition for the muse for Toya as well. The faces Toya makes while they jam are truly of someone feeling in ‘the zone’, emotionally released, or otherwords creating those ‘blurry lines’ of awareness! Toya goes on to write ‘Vibrato’ soon after breaking his writing block so something turned his switch for creativity (Not romantically, I get a feeling he may have more serious feelings for his sidekick Mahiro). This whole movie is as full of these layers as a Kirasawa film would be. I’m on my third round watching this series (sad but true) and everytime I felt that ‘hiccup’ in plot or scene that seemed weird, I stopped the show and asked why on Google! Why this song, why that excuse, why is Toya grabbing his throat rolling around on the top of a piano (Nodo kara te ga deru)? I found a lot of symbolism, scene setting, japanese cultural idioms, lyrics that hint at the strange connection the brothers have with Akane as the new feminine force in their lives. It left me with a lot of respect for Suda Masaki ( he is what I would call a beautiful fidgeter with his movements and expressions) and Takeru Satoh for spending a lot of energy and including details like these to create complexity, and what I tell from the behind the scenes videos the strong collaborative part of this film with all crew, cast and muscians for its songs is something that will a turning point for their film industry! Lucky us! Thanks for having a space to post this, this is my first fan review ever, I just had to share this crazy new experience with asian dramas with someone!
@YamameOnna
Welcome to The Verdict and thank for you sharing your thoughts on Glass Heart! I really like your perspective on the centrality of the Naoki/Toya relationship, and their competing stances vis a vis Akane. In my [only] watch, I was surprised to find out that Naoki and Toya were brothers, although in retrospect I should have been seen that coming 16 bars away.
Like you, I appreciated the exploration of the multiple relationships and didn’t miss romantic connections at all (I feel that the depictions of missed romantic involvements resonate even more when done well). And as you point out, the two ML performances really made these aspects sing.
I didn’t recognize the Ravel piece or know its back story but will check it out. I’m impressed you picked it up. Curious to know: what was your favorite song from the show?
I think I could speak for KFG as well as myself to thank for choosing to make this your first fan post with such a deeply insightful and beautifully written comment. Hope to hear more from you in the future, either here or on Patreon (which has more than its share of music nerds).
This was great reading j3ffc! Just wonderful!
Thanks so much! Glad you enjoyed it!!
Great post, j3ffc! I’ve only seen the first few episodes and only have a rather fuzzy memory of them but your take sounds pretty spot on. That first rainy scene was great, so much energy!
Machida Keita was Takaoka Sho!? I had NO idea, he totally disapeared in the role, so much so that I didn’t recognise him at all. Well, well, well… he’s certainly come a long way since his beginnings as an actor, though I think he was decent enough even in the early days. The first drama I saw him in was Sugarless, back in 2012, LOL!
Thanks, @Timescout! I I’d not seen Machida Keita before but thought he really did well here. They have a bunch of BTS or other promotional films with the cast, and I didn’t recognize at first b/c his hair is (back to?) blond!
Thank you, KFG, for the honor of posting these comments!
@j3ffc – Thank You for this detailed review from your POV.
coincidentally only on last Friday late night I was reading your Glass Hearts notes in detail that you posted in Deep Dive for Oct. And I was musing on the comparison of Sting with “genius” and how both of them play the bass. I do enjoy Sting music and some of his songs are my fave but I felt very foolish after reading your notes. Because he was performing in Sep 2025 here and till week before the event I was very much inclined to attend but last minute I decided otherwise.
On Glass Hearts J-drama itself – it is good that KFG got to post your review in the main blog here and now I can refer this easily whenever I watch the drama (hopefully in the NY).
Also I read that you are familiar with J-rock: So do you have any opinion on One Ok Rock band. They are performing here in Mar and I am inclined to attend this one.
And in case if you haven’t known this yet – the new female Japanese PM is a fan of heavy metal music (read Iron Maiden/Deep Purple) and is also a drummer it seems…. more info below and I lol when she mentioned how and when she plays the drums.
https://www.cbsnews.com/news/sanae-takaichi-japan-prime-minister-heavy-metal-drums/
Thanks for your nice comment, Jasmine, and the deep read! And, yes, I’d definitely check out One OK Rock if you have the chance; excellent pop rock and very accessible. If you go please do post a report!
Thanks for this, j3ffc! I enjoyed this show a lot and agree with you that you really do need to squint and ignore the nuttier stuff (the boat…seriously??). That said, I found it to be an atmospheric watch with such good cinematography. We agree re the most interesting songs from the OST and I’d add Chasing Blurry Lines. Definitely has it’s share of flaws but I enjoyed the ride!
Thanks so much for reading, Deb. It was a very pretty show indeed…
Thank you so much for your review of Glass Heart, j3ffc. It was a show I wanted to like but dropped along the way.
There was, not just good, but great potential here. I gave it a chance for two episodes. I found the male leads were too pretentious (I didn’t appreciate that our tortured genius was perhaps, considerate of his fellow human beings) and the music, from my point of view, discordant (they tried too hard) at times.
JJ tried to tempt me back with the behind the scenes videos, which were great and I enjoyed so much more than the show.
I was watching Herb Alpert the other day – just to remind myself how good he was (is) as he is touring at the moment and the influence he had on music – including Sting. Then with the passing of Ace Frehley (who I rated highly and who with KISS, influenced so much re Japanese Rock) and of course Ozzie, reminds us of our own mortality.
Here is something I wrote the other day you might like:
https://strategicteams.wordpress.com/2025/10/01/jeff-st-john-teach-me-how-fly/
Sean, oh, yes, it was definitely a YMMV type of show. And I’d also love to see other takes on the genre (maybe a K-drama version of The Commitments).
And no kidding about the passing of the heroes of our youths; just about every day now we see another passing. I nearly cried a couple of months back when Garth Hudson, the last surviving member of The Band, died. I also checked out Herb Alpert recently in connection with a project I’m doing for the EOY posts (shhh, don’t tell anyone). Speaking of which, I’m right now working on a project that YOU recommended last year and I hope to post on it next week.
Thanks for reading, Sean. Hope you are staying well.
I will totally watch a Kdrama version of The Commitments!
@j3ffc – yes, I did go down a bit of a rabbit hole re Garth, particularly trying to do justice to The Weight.
A Kdrama version of The Commitments would be interesting. I started to visualise how they would do Mustang Sally.
Well, colour me impressed, now I am intrigued with what you have planned for your EOY post and the project you are working on 😉
Great fun as always. See you on the flip side…