The world has changed and everything is different from before.
Human beings, all human beings, are endowed with the potential to awaken supernatural powers.
However, due to differences in physical constitution, the time for everyone to awaken their powers is different.
Some people may awaken their powers at birth, while others may only awaken their powers when they are on the verge of death or old age.
In order to standardize management, the country created a machine to measure potential, and designated the age of 13-16 as the golden age of awakening.