After transmigrating to a small frontier town in another world, Aite finds that the original owner was weak and incompetent, with the regent holding all power over the territory. The regent’s son even comes to bully him without restraint. Aite finally snaps and kicks the young noble to the ground, unlocking a Summoning System that lets him draw renowned generals from throughout history to fight at his side. Just as a massive orc army lays siege to the city, he leads his mighty generals in defending the walls and restoring the lord’s authority.