In this world, magic dominates. Magic is a power in the world, as well as the inhabitants. Dragons, Fairies, and Humans all exist in this world, as well as others. In this world, a man named Nexus Dragma is a treasure hunter as a hobby and lives with his friends as college roommates. The world they live in soon gets plunged into an age of darkness once again and it's up to unlikely heroes to fight a war for the sake of protecting the bond that makes them family.