転生したので固有称号《ユニークアチーブメント》で陰の世界で暗躍します (Associated Names)

Sieg is reborn in a different world, a world where people’s talents are identified by a system called “titles”. In such a world, Sieg works in the shadow world. He creates an organization called “Akashic Castle” and uses the conspiracy of the country and the world to seize and destroy it.