'Han Seong', the Commander-in-Chief of the Earth Suicide Squad who hunted monsters. Summoned to another world, he was used as the Empire's hunting dog and then abandoned. Meeting death after being used and discarded, He opened his eyes and was reincarnated as 'Dale', the son of the 'Black Duke', the Empire's strongest Dark Mage. "I will topple the Empire with my own hands." Sword and Magic, and Necromancy. Dale, reborn as the genius prodigy of the Ducal House based on the knowledge and abilities of his previous life. He, who was once the Empire's dog, now aims for the heart of the Empire.