SI-VIS: The Sound of Heroes Anime Reveals Teaser Video With Insert Song, More Staff
Written by admin on September 13, 2025
posted on by Crystalyn Hodgkins
Music-themed series debuts on October 5
Aniplex revealed a new teaser promotional video at the Aniplex Online Fest event on Saturday for it and Sony Music‘s new original television anime series SI-VIS: The Sound of Heroes.

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The video previews SI-VIS’ insert song “Melodea.” The event also revealed more staff members.

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Daisuke Yoshida (Idol Incidents, Blue Exorcist: Beyond the Snow Saga) is directing the anime at Studio VOLN. Naho Ōtsuki (key animator for Lycoris Recoil, Back Arrow) and Nami Fujii (key animator for My Hero Academia seasons 6 and 7) are designing the characters for animation, and Shūhei Mutsuki (Spy×Family three seasons) is composing the music.
Other staff members include:
- Sub-Character Design: Mika Takahashi, Masahiro Yamanaka
- Monster Design: Tomohisa Onoue
- Chief Animation Director: Yurie Ōhigashi
- Action Animation Director: Takaaki Hirayama
- Art Director: Takao Makino
- Color Design: Yoshinori Horikawa
- Director of Photography: Sota Mikami
- CG Director: Masato Takahashi
- Editing: Yumi Jinguji
- Sound Director: Yasushi Nagura
As previously announced, Fumiaki Maruto (Saekano: How to Raise a Boring Girlfriend light novel author and anime scriptwriter) is overseeing and writing the series scripts. Hidari (Santa Company, Fractale, Phantom in the Twilight) is the original character designer.

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The series will debut on Fuji TV on October 5 at 9:30 a.m. JST. The anime will stream on various services in Japan starting on October 7. Crunchyroll will also stream the series worldwide excluding Asia.
The anime will star:
- Nobunaga Shimazaki as Sōji
- Akari Kitō as μ (pronounced “myu”)
- Daisuke Namikawa as YOSUKE
- Ayane Sakura as Siren
- Sōma Saitō as JUNE
Sony Music selected the vocal artists who will provide the singing voices for the characters, and will reveal those artists at a later date.
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 threatening to destroy the world named “Mirage.” Through their live performances, they gather the power to fight.
Source: Press release