Glass Heart

グラスハート ‧ Drama ‧ 2025
Glass Heart poster
8.6
Your Rating: 0/10
Ratings: 8.6/10 from 3,825 users
# of Watchers: 9,820
Reviews: 50 users
Ranked #408
Popularity #2153
Watchers 3,825

Saijo Akane, a drummer who was ousted from her previous band just before her debut, is unexpectedly chosen by Fujitani Naoki, a reclusive and brilliant musician, to join his new band, TENBLANK. Together with band members Takaoka Sho and Sakamoto Kazushi, the band gains fame through Fujitani's distinctive compositions and their electrifying performances. As TENBLANK rises to stardom, they face numerous challenges, and Akane's journey from obscurity to stardom unfolds as Fujitani's secrets emerge. Will the band withstand the storm, and where will Akane's heart lead her? (Source: Netflix) ~~ Adapted from the novel "Glass Heart" (グラスハート) by Wakagi Mio (若木未生). Edit Translation

  • English
  • Arabic
  • Русский
  • Українська
  • Country: Japan
  • Type: Drama
  • Episodes: 10
  • Aired: Jul 31, 2025
  • Aired On: Thursday
  • Original Network: Netflix
  • Duration: 45 min.
  • Score: 8.6 (scored by 3,825 users)
  • Ranked: #408
  • Popularity: #2153
  • Content Rating: 13+ - Teens 13 or older

Where to Watch Glass Heart

Netflix
Subscription (sub)

Cast & Credits

Photos

Glass Heart Japanese Drama photo
Glass Heart Japanese Drama photo
Glass Heart Japanese Drama photo
Glass Heart Japanese Drama photo
Glass Heart Japanese Drama photo
Glass Heart Japanese Drama photo

Reviews

Completed
Jojo Flower Award2 Dumpster Fire Award1 Boba Brainstormer1 Lore Librarian1 Mic Drop Darling1 Big Brain Award1
80 people found this review helpful
Aug 1, 2025
10 of 10 episodes seen
Completed 19
Overall 8.0
Story 7.5
Acting/Cast 10
Music 10
Rewatch Value 8.5

When the music burned brighter than the actual plot!

Sometimes, music is the way to express ourselves, and the drama leans heavily into that. Music didn't just set the mood here, it hijacked the plot, stole the spotlight and not in a subtle way. It's the heartbeat of the story. With every strum, beat and verse, the drama tries to convey things its characters can't say directly and even when the writing slips, the music saves it all.

The story revolves around Saijo Akane, a drummer who her previous mates abandoned, and gets a second chance when she is invited to join the band "TENBLANK".

TENBLANK band members or should I say the "plots" :
✨Fujitani Naoki: He was the genius but eccentric composer with a messy heart and even messier hair. The creative nucleus of the group. I would describe him as intense, obsessive, borderline reclusive, but a fascinating creature. Under all that facade, he is a man weighed down by unresolved emotions and secrets he would protect at all costs. Takeru Satoh did a great job. I know he is a fine actor and it showed. I recently saw him in Marry my husband and the character difference shows his versatile range.

✨Takaoka Sho: He was the guitarist who didn't demand attention but had mine from start to finish! He was soft spoken, observant and incredibly skilled. Machida Keita completely stole the show for me. From episode one to the finale, his styling was absolutely flawless. From the turtlenecks to that effortlessly perfect long hair, every detail was on point. I know this isn't exactly about his acting (which is already well-respected, no need for testimonials there) but the look he served in this drama was iconic. He had me catching second lead syndrome so bad. I mean, imagine ignoring Satoh... and yet, here I am.

✨Sakamoto Kazushi: He was sharp, confident and wasn't afraid to speak his mind, especially when it came to challenging Naoki's authority. But I feel the writing didn't give him enough to fully bloom. We get glimpses of pride and conflict but it feels underdeveloped. Shison Jun did a solid job in portraying this character. He played the perfect tsundere.

✨And the newly added member was Miss Sajio Akane, the underdog drummer, as they say. She had grit, she listened, she learned and she put in the work, not just for show. Nothing she did felt fake or wasted.
Miyazaki Yu gave a genuinely likeable and grounded performance. She played the perfect mix of insecurity and inner fire. I rooted and cheered for Akane.

🔥 Wild card Toya: I know he isn't the official member of TENBLANK but he isn't the one to ignore. You just can't! He is the kind of character who could walk into a scene mid-chaos and steal every ounce of attention. He is a loud, intense bona fide rockstar who seemed crazy but beneath all that is a man who is haunted by choices, loss and love that never really left. He is both tragic and unforgettable. Some scenes definitely tossed realism out the window, but it served the drama and I ate it up.
Maski Suda devoured this role. At first glance, I didn't recognise him. He was raw, a bit feral and had the reckless energy exuding. You just can't look away.

But not everything in the mix felt right. While the music and the stellar cast were a win, the pacing was all over the place, especially in the second half. This would be just me but we (I) DO NOT need a romantic subplot to show up like the last-minute guest. The story would have worked fine without a romantic storyline, it might have worked better if I were being honest. We could have focused more on the other band members and their stories. I feel there was barely any spotlight given to them. There were times it felt like a one-man show, but then a group performance glossed over that feeling, but it definitely lingered more than it should.

Another thing I noticed and maybe this is just me (again), was how the energy and adrenaline would spike during each performance, but then drop off right after. It didn’t really carry over once that fantastic music stopped playing. The in-between moments felt a bit dull and I kept waiting for them to practice or be back on stage to feel that energy again.
Maybe this is what happens when you have full-blown performances. This wasn't just "slap a ballad or two on it" drama but it gave us actual bangers. I feel the music is the main plot here and the rest of everything feels secondary.

The cinematography was stunning, especially the rain shots. And the camera work during the concert sequences was pure artistry. It screamed budget in the best way.

Overall, despite the scratches, this was an entertaining and binge worthy watch. It didn't exactly stick the landing or maybe I had high expectations from the actual plot "writing", but the journey is worth it for the vibes, stellar cast and amazing soundtracks. It's the kind of predictable plot where you will be rolling your eyes a bit but still replay the songs on loop. Not perfect, but comfortable in its own ways.

If you have made it this far, thank you for reading my review! <3
I thought I was going to keep this short… and yet here we are lmao. If you decide to check out the drama, I hope you enjoy it as much as I did!

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Completed
kentv
13 people found this review helpful
Aug 7, 2025
10 of 10 episodes seen
Completed 0
Overall 9.0
Story 9.0
Acting/Cast 8.5
Music 10
Rewatch Value 8.5
This review may contain spoilers

Well Worth The Time

I've only watched a few jdramas so I wasn't familiar with any of the cast members. I'm not a musician myself but my oldest sons were in a local band for a number of years and I got a chance to see firsthand some of that world. I really enjoyed the FL playing her drums in the rain in Episode 1. Truth be told, her story is the story, though as others have mentioned, the series star is the music. I really enjoy the "positive outlook" FL in this type of series, maybe because I don't bump into too many here in the States. And maybe they only exist in fictional series.

The only time I got bored was in episodes 8 & 9 when the writer felt they needed to expand the backstories for the band members. Episode 10 made up for it with a creative victory lap where the band was joined by some of the former villains who turned into allies. Overall a feel good series loaded with enjoyable music.

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Details

  • Title: Glass Heart
  • Type: Drama
  • Format: Standard Series
  • Country: Japan
  • Episodes: 10
  • Aired: Jul 31, 2025
  • Aired On: Thursday
  • Original Network: Netflix
  • Duration: 45 min.
  • Content Rating: 13+ - Teens 13 or older

Statistics

  • Score: 8.6 (scored by 3,825 users)
  • Ranked: #408
  • Popularity: #2153
  • Watchers: 9,820

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