Nero Pendragon lives in a world called Elgin. In Elgin, most of the population lives on floating islands to stay safe from giant creatures called Aragami that live on the ground.

The last thing that a high school boy remembers is a strange explosion ripping through his classroom. In the aftermath of the tragedy, he finds himself reborn as a newborn baby into the royal family named Arthur Crystal-Dragon.

fourteen-year-old Nero Silverwing is your average, everyday otaku. However, his simple life of pulling all-nighters and going to school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world.