The Kingdom of Miochi is a supernatural kingdom with a population of 50.4 Million. Everyone there has their own UC. However, there is an unwritten rule in this kingdom - Ultra-capable and Guardians. Others are not allowed to use supernatural powers without authorization.
As time goes by, after the baptism of history, some people have forgotten that they have UC, and more people have lost UC. The descendants of the original Ultra-capable and Guardians have fewer and fewer people with powers. Therefore, Ultra-capable and Guardians decided to send some people from both sides to form a guild to search for people with UC around the world, and teach them how to use powers. Then they judge their personal abilities and assign them to Ultra-capable and Guardians...