Series · 2025 – 2026 · Animation
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.
1 season · 24 episodes

Episode 01
City of Mirage
Minami Kyoya aspires to join SI-VIS, a music group. But he gets caught up in a mysterious force, Mirage.

Episode 02
A Thoroughly Eaten Star
Yosuke dies in the battle with the Mirage, and Kyoya is devastated. Soji tells him to go back to his hometown.

Episode 03
Welcome to Hellish Paradise
Kyoya struggles to reach the other members’ level. When his debut stage is about to start, the Mirage appears.

Episode 04
New Team with a Rocky Road Ahead
Despite everything, Kyoya leads a fulfilling school life. One day, Rui approaches Kyoya with a desperate plea.

Episode 05
The Day When Five Become One
SI-VIS’s camp starts off awkward, but eventually, they start to open up. Then, Siren gives them a challenge.

Episode 06
Holding This Song and Courage in My Heart
SI-VIS plans to counter the Mirage of unprecedented scale with the new album release concert.

Episode 07
Irrational Encounter
Kyoya invites Nagi to the school festival while on a date. Then, we learn about June’s little brother.

Episode 08
Light and Darkness After the Festival
Kyoya, μ, and Soji compete for points at the festival. Moved by June's voice, Krios questions his actions.

Episode 09
I Want to See Your Gentle Smile Again
The Mirage has appeared in Saegusa Academy! But learning the identity of XENOS, June is consumed with hatred.

Episode 10
The Sixth SI-VIS
Rui begins to train Nagi, but Kyoya is upset to learn that Nagi is slated to be a new SI-VIS member.

Episode 11
A Diva and a Knight
SI-VIS goes to vacation on an island owned by Seina. There, Kyoya discovers texts that reminds him of Yosuke.

Episode 12
The Last Remaining Despair
The Mirage appears in Kyoya's hometown, and Lukos' attack drives SI-VIS into a corner.

Episode 13
Dejection and Determination
SI-VIS starts to train during Siren’s absence. Meanwhile, a mysterious figures watch over from afar.

Episode 14
Come Back to Life, My Friend
Soji visits Kyoya in his hometown to bring him back. Meanwhile, Krios is fueled to avenge Lukos.

Episode 15
Because I Am SI-VIS
The Mirage suddenly appears in Tokyo. Without Kyoya and Soji, SI-VIS counterattacks with a guerrilla concert.

Episode 16
Welcome to Labyrinth
Kyoya tries to help Siren, and Nagi trains hard to step up. Then, a shocking secret is revealed in Harmonia.

Episode 17
Wishes and Songs Will Be Heard
Nagi and μ are trapped in a mysterious labyrinth. Separated SI-VIS members fight hard for each other.

Episode 18
Bring Despair to the Earth, and…
The most formidable enemy of all, Apollo, and SI-VIS commence the battle that will determine their fate.

Episode 19
Accelerating Collapse
In the chaos, SI-VIS tries to regroup. Meanwhile, a major change is happening within XENOS.

Episode 20
Future After Revenge
SI-VIS prepares to leave the Earth to take Nagi back. Meanwhile, Nagi learns about the diva.

Episode 21
Strongest Because of Imperfection
Samael challenges SI-VIS to a battle over Nagi and the multiple Mirages on the earth.

Episode 22
A Diva in the Cage
Apollo launches the final attack on the Earth using Nagi. Kyoya stands up to save her.

Episode 23
Triumphant Return of a Super Star
SI-VIS faces Kokytos in the Mirage. With Siren back, the best performance in the history of SI-VIS begins!

Episode 24
Grand Finale of the Beginning
The live concert that determines the fate of Earth will proceed to its encore.
based on 6 votes
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.
6 principal cast
SI-VIS: The Sound of Heroes is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The animation has 1 season and 24 total episodes, rated 5.8/10 by 6 viewers.
SI-VIS: The Sound of Heroes has 1 season with 24 episodes in total.
SI-VIS: The Sound of Heroes has ended and is no longer in production.
SI-VIS: The Sound of Heroes airs on Fuji TV.
SI-VIS: The Sound of Heroes first aired on October 5, 2025.
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