In the originally peaceful human world, some children with the abilities of legendary mythical beasts and monsters suddenly appeared. These children are like ordinary children before the age of six. On the night of the first full moon after their sixth birthday, the hidden abilities in their bodies will appear. They will always have these abilities from then on. Those children will hurt people due to losing control of their abilities. , People called these children 'reincarnated people', and the human world began to become restless due to the appearance of reincarnated people. Later, some people established various associations to hunt out-of-control or high-risk reincarnated people, and those responsible for hunting were called 'reincarnated hunters'. From then on, the war between 'reincarnated people' and 'reincarnated hunters' began