The official Twitter/X of the ongoing SI-VIS: The Sound of Heroes TV anime series has announced the casting of Megumi Han and Maaya Uchida in two new roles. The anime first aired in Japan on October 5, 2025 and will broadcast for two consecutive cours.
Han and Uchida will be voicing the twin characters Krios and Lukos, respectively.
In addition, a new lyric video for the anime’s ninth episode insert song “Romanticist Killer” has also been posted on Aniplex’s Japanese YouTube channel.
Daisuke Yoshida (Blue Exorcist: The Blue Night Saga) is directing the anime series, with Fumiaki Maruto (Saekano author) as series composer and scriptwriter, Naho Otsuki and Nami Fujii as character designers, and Hidari as original character designer. Studio VOLN is handling the animation production.
SI-VIS: The Sound of Heroes was officially announced in July 2025 and is produced by Aniplex and Sony Music. Aniplex is fully owned by Sony Music Entertainment.
Meanwhile, the anime’s voice cast stars:
- • Anan Furuya as Kyoya
- • Manaka Iwami as Nagi
- • Daisuke Namikawa as Yosuke
- • Ayane Sakura as Seiren
- • Nobunaga Shimazaki as Soji
- • Akari Kito as μ
- • Soma Saito as JUNE
Crunchyroll is streaming SI-VIS: The Sound of Heroes worldwide in select countries and territories, describing the main premise as:
SI-VIS is a co-ed music group, led by YOSUKE, shaking up the global music scene with their unmatched vocals and performances. However, they are actually heroes in disguise, battling against mysterious forces threatening the world. They convert audience energy at live performances into combat power. Luckily, the battles appear to be ordinary concerts to the public, keeping their identity a secret.
Sources: SI-VIS: The Sound of Heroes Official Twitter (2) (3), Anime News Network
