SI-VIS: The Sound of Heroes

SI-VIS is a mixed-gender music group led by Yosuke, known for their powerful vocals and performances that have made waves both in Japan and abroad. But behind the scenes, they're actually heroes fighting against a mysterious disaster threatening the world.

Using the energy gathered from their live shows, they take on this hidden threat, though to the public, their battles just look like ordinary concerts.

(Source: MAL News)