#glassheartedit

When a drummer is kicked out of her band, she meets a brilliant musician who invites her to join his new ensemble, TENBLANK. A band that quickly takes the world by storm...

Glass Heart premieres July 31. Starring Takeru Satoh, Yu Miyazaki, Keita Machida, Jun Shison, and Masaki Suda.

OFFICIAL POSTER

TEN BLANK INDIVIDUAL POSTERS

OVER CHROME INDIVIDUAL POSTERS

The band TENBLANK is officially making their real-world debut!

A 30-second demo version of "Senritsu to Kessho" ('Crystalline Echo'), a song from their upcoming debut album featuring vocals by Takeru Sato and lyrics by Yojiro Noda of RADWIMPS, is now available for early streaming on TikTok and Instagram starting today, May 22nd.

The CD will be released in two formats: a regular edition and a limited first edition. The limited first edition will include a Blu-ray with behind-the-scenes making-of footage from the drama's filming.

TENBLANK's debut album, Glass Heart, will be digitally released on July 31, 2025.

You can pre-add/pre-save the digital album Glass Heart here.

Netflix Press Release

Turn up the volume! The Japanese music drama Glass Heart premieres July 31 — and today, the teaser trailer offers a first look at the electrically charged, heart-thumping sights and sounds of this series. For the first time, fans will hear the song "Crystalline Echo" by the series’ band TENBLANK, sung by Takeru Satoh with lyrics by Yojiro Noda of RADWIMPS! In addition, teaser art and character art have been released. The teaser opens with Naoki Fujitani (Takeru Satoh), the lead vocalist of the four-member band TENBLANK, as the curtain rises on their live performance. The live scene, which involved over 5,000 extras and was shot with 12 cameras, is truly breathtaking, creating a sense of realism and excitement that ranks among the largest in Japanese drama history.

Along with Satoh, the band members — guitarist Sho Takaoka (Keita Machida), keyboardist Kazushi Sakamoto (Jun Shison), and heroine drummer Akane Saijo (Yu Miyazaki) — underwent rigorous musical training to deliver genuine performances.

Glass Heart follows Fujitani's growth as he navigates conflicts with charismatic rival vocalist Toya Shinzaki (Masaki Suda) from the competing band OVER CHROME, while becoming entangled in the schemes of a powerful music industry producer. Throughout these challenges, the band members support each other, deepening their bonds and growing as a destiny-bound unit.

The song ”Crystalline Echo," composed by Masahiro Tobinai and written by Yojira Noda, is just one of the several songs Noda pens for TENBLANK featured in this series.

Newly announced cast members include Erika Karata as TENBLANK's manager Miyako Kai, Pistol Takehara as Genji Kamiyama, Akari Takaishi as the diva Yukino Sakurai, who performs songs written by Fujitani, and YOU as Momoko Saijo, Akane's mother and confidante. Naohito Fujiki plays the envious music producer Ichidai Isagi, Takayuki Yamada as the vocalist of the popular rock band Takaoka once belonged to, and Reini as Mahiro Arisugawa from OVER CHROME.

Glass Heart streams on July 31, only on Netflix.

Story: Akane Saijo, a drummer who was ousted from her previous band just before her debut, is unexpectedly chosen by Naoki Fujitani — a reclusive and brilliant musician — to join his new band, TENBLANK. Together with band members Sho Takaoka and Kazushi Sakamoto, 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?