Season 1 of Glass Heart was released on July 31 and consists of 10 episodes.
Episodes
1: glass heart
Jul 31, 2025
On the day that Akane Saijo decides to give up drumming forever, fate extends a hand — musical genius Naoki Fujitani wants her to join his new band.
2: Crystalline Echo
Jul 31, 2025
TENBLANK makes its much-anticipated stage debut. As they rush to prepare new songs for recording, Akane feels the pressure to find her unique sound.
3: Unbroken
Jul 31, 2025
Thanks to Naoki's efforts, TENBLANK secures a special stage for their first live TV appearance — but they face an obstacle right before the broadcast.
4: PLAY OUT LOUD
Jul 31, 2025
The band visits Naoki's countryside home. Kazushi loses his temper upon learning his song was altered. Meanwhile, Akane's romantic feelings intensify.
5: Citrus
Jul 31, 2025
A new song sparks fresh rivalry and uncovers old wounds between TENBLANK and OVER CHROME — Akane finds herself caught in the middle as tensions mount.
6: Vibrato
Jul 31, 2025
As TENBLANK prepares to take the stage, the band and audience learn shocking news. Naoki rushes to Toya's side to make a heartfelt confession.
7: Lucky Me
Jul 31, 2025
As TENBLANK starts their tour, Kazushi reveals his long-hidden feelings. Akane steps in to mediate a tense confrontation between Yukino and Naoki.
8: MATRIX
Jul 31, 2025
Sho makes a shocking discovery that throws the band members into disarray. As they process the news, TENBLANK's history and origin story come to light.
9: Forever Eve
Jul 31, 2025
As Naoki writes a new song, Kazushi and Sho struggle to face the truth. Meanwhile, Akane makes a shocking announcement that further alienates the band.
10: Glass Heart
Jul 31, 2025
TENBLANK makes a promise to each other before going on stage. As news breaks during the performance, Naoki offers a heartfelt confession to the crowd.
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