Locusts are a headache-inducing creature, regardless of the country, because once they swarm, they often number in the hundreds of thousands to millions. They devour all visible plants, humans' crops, Beastmen's grasslands, Elven forests, Dwarf's terraced fields, leaving no plant in their wake. Yet, they are very frail. A mere flock of poultry could eliminate a significant quantity of locusts, and a high-ranking or even Legendary Mage could severely damage them by casting a few Fire-attribute spells. The intelligent creatures of the Yarran Continent have waged war on locusts for tens of thousands of years, and are now very familiar with the locusts' habits. But probably no one knows that perhaps in ancient times, these locusts did not eat plants as they do now, they were quite ferocious carnivores, surviving by swarming to hunt large creatures and devouring their flesh and blood.