SI-VIS: The Sound of Heroes Anime Reveals New Insert Song and Cast Members

The anime is currently streaming on Crunchyroll.

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The staff of Aniplex and Sony Music Entertainment’s SI-VIS: The Sound of Heroes original anime released a new promotional video featuring lyrics for the insert song “Romanticist.” In addition, Megumi Han and Maaya Uchida are joining the cast of SI-VIS: The Sound of Heroes as Krios and Lukos, respectively.

Crunchyroll is streaming the SI-VIS: The Sound of Heroes anime in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, CIS, Indian Subcontinent and Southeast Asia. In Japan, the anime is airing on Fuji TV.

In-story musical unit SI-VIS performs the opening theme song “So Far Away” and the ending theme song “Friends & Smile” for the first cour of SI-VIS: The Sound of Heroes. The songs were both penned by Takui Nakajima. Taisho is handling the vocals in songs for YOSUKE, the leader of SI-VIS.

The cast includes: 

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

Saekano: How to Raise a Boring Girlfriend author Fumiaki Maruto oversees and writes the series scripts of SI-VIS: The Sound of Heroes. Hidari is the original character designer. 

Additional 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
SI-VIS The Sound of Heroes key visual
©2025 ハルモニアエンタテインメント

Lastly, here’s an overview of the anime series, courtesy of Crunchyroll:

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.

Soul Kiwami
Soul Kiwami
Raul Ochoa, a.k.a. Soul Kiwami, is the Managing Editor of Final Weapon with six years of writing/editing experience and a former News Writer at Game Rant. Raul is passionate about the Japanese gaming and anime/manga industries, and he's a huge fan of Nintendo Switch, PC hardware, JRPGs, and fighting games. business email: [email protected] | Muck Rack: https://muckrack.com/raul-landaverde-1

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