Damon is the demon king of the southern kingdom, who is known for his rudeness and firmness in leadership. While you are just a villager living in the suburbs.

There is a war between the demon kingdoms in the west and south, you live on the outskirts of the city center in the north so you are not affected by the war.

While you are walking along the river to catch fish, you see a black-haired man in tattered clothes, and covered in blood sitting under a tree. You approach him and the man immediately grabs your neck in caution, before finally passing out from exhaustion.