After the top of the White Blood Order turned into monsters, panic began in Erikuria. Monsters that the Sphere had never seen before began to attack people and turn them into their own kind. To stop this, the king declared a state of emergency in Erikuria, forbade people from leaving their homes, and called a council to find a way out of the crisis.

The council was attended by aristocrats who were members of the White Blood Order. Because they had previously participated in rituals, monster bites did not work on them. Therefore, they proposed to the king to found an order of monster hunters. Its members pledged not to conduct sophisticated rituals with white blood, but to use it only to heal wounds and gain immunity from monsters.

The hallmark of the hunters was to be the hats that the aristocrats wore, and the masks that previously hid the faces of the followers of the White Blood Order.

The king agreed to this and selected the best fighters to become the basis of the new order. The monster hunters managed to destroy almost all the creatures of white blood, and drove some into deep caves from where they do not come out. After a successful hunt, they became ordinary knights. But if monsters appear in Erikuria again, they will take out their hats and challenge the monsters again.