Deca-Dence

Set in a world where the concept of music ceases to exist. the story begins when a boy encounters Myuu, a mysterious girl who possesses an audio input jack in her body. The two intermingle with the history of rock music and embark on an unforgettable journey.

High school freshman Hiro Amanokawa activates a mysterious device left behind by his father called "Digivice" that makes unknown creatures that cannot be seen by ordinary people, the Digimon, visible to his eyes. This is the story of this other side of the world that nobody is aware of. With their friends, Hiro and Gammamon dive into the mysterious world where these creatures live.

When a young laborer escapes to the world aboveground, he discovers a violent land in which humans battle robots controlled by a power-hungry noble.

In the year 2024, the world has collapsed. Grotesque monsters lurk amongst the ruins of Japan, while remaining people scrape together what they can to survive. Kiruko, an odd-job girl in Nakano, accepts a mysterious woman's dying wish to take a boy named Maru to a place called Heaven. Maru is convinced that there will be a boy there who looks exactly like him.