Gods live in the sky, dragons fly in the sky, giants walk in the mountains, fairies exist in all things, elves rule the forest, and knights rule the earth. This is the law of the world for thousands of years, until a group of people appeared, the eternal law was broken The thundering weapon called the gun completely smashed the bow and arrow that the elves are proud of. The giant steel beast called the tank, and the charge of the shattered knight, in the face of this torrent of steel, any knights are so insignificant. Insignificant. The steel eagle called the airplane, soaring in the sky, knocked down the invincible dragon to the ground, screaming in pain. They came with death and flames, they sent all the nobles to the guillotine, they Burn the temple of the gods to ashes. Empires, kingdoms, religions, nobles... all are completely destroyed.