SI-VIS: The Sound of Heroes original anime announced for October 2025

On Sunday, July 27, 2025, Sony Music and Aniplex announced a new TV anime series, SI-VIS: The Sound of Heroes. The anime premieres in October 2025 on the popular Japanese TV network, Fuji TV.

Alongside the release announcement, the producers also revealed a character voice trailer for the anime, including a list of several staff members who will be working on the series.

Original TV anime SI-VIS: The Sound of Heroes to premiere in October 2025

As mentioned earlier, the original TV anime series from collaborators Aniplex and Sony Music, SI-VIS: The Sound of Heroes, is scheduled to premiere in October 2025. The series will be broadcast on the popular Japanese television network, Fuji TV, as was announced on Sunday, July 27, 2025.

While the series is at its preliminary stage of production, a very limited list of staff and cast members has been announced. Regarding the staff members, Fumiaki Maruto, popularly known for being the light novel author and anime scriptwriter of Saekano: How to Raise a Boring Girlfriend, is in charge of overseeing and writing the series' scripts.

SI-VIS: The Sound of Heroes anime's main cast (Image via Aniplex, Sony Music)

Additionally, Hidari, known for his artwork in Santa Company, Fractale, and Phantom in the Twilight, is credited as the original character designer for the series. Regarding the cast for the anime series, the major character voice actors and actresses have already been signed and are listed as follows:

Ayane Sakura as Siren
Sōma Saitō as JUNE
Daisuke Namikawa as YOSUKE
Nobunaga Shimazaki as Sōji
Akari Kitō as μ (pronounced "myu").

Sony Music also revealed that they have selected the voice artists for the songs and compositions in the SI-VIS: The Sound of Heroes anime series, but will disclose the artists' names later via another announcement.

Additionally, both Aniplex and Sony Music had teased the new work with a countdown site on Thursday. The companies stated the anime would have the theme of "Music x Hero." According to the production companies' description, the story's description reads:

"The story centers on the members of the SI-VIS co-ed vocal unit that is wildly popular both inside and outside Japan. Their true secret identity is a group of heroes who fight against a mysterious calamity threating to destroy the world. Through their live performances, they gather the power to fight."

Are you excited for the SI-VIS: The Sound of Heroes original TV anime series premiering in October 2025? Let us know in the comments below. Follow us for more anime/manga news and updates.

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About the author

Ribhu Ghosh is an Anime Journalist at Sportskeeda. With a degree in Journalism from the University of Calcutta, his deep-rooted passion for anime and manga led him to pursue a career in writing about the same. Along with his 6 years of experience as an illustrator and digital artist for various overseas anime studios and companies, he also aspires to write storylines. Ribhu's creative journey has been profoundly influenced by renowned mangakas such as Sui Ishida, Masashi Kishimoto, Kohei Horikoshi, and Koyoharu Gotouge.

Ribhu's enthusiasm for storytelling and illustration is evident in his meticulous approach to reporting. He values accuracy and relevance and always prioritizes thorough research. When he's not writing, Ribhu enjoys illustrating, playing chess, and engaging in outdoor activities like badminton. His diverse interests extend to music, cooking, reading, and gaming, all of which complement his passion for the entertainment and Popular Culture division.

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Edited by Arunava Dutta