Arrow, the eldest son of a frontier noble, lived a life of plenty, surrounded by his fiancée, younger sister, and maids. One day, Sullivan, the next head of the Asmodeus family—one of the four great noble families—visited Arrow’s mansion. What was thought to be an effort to build a friendly relationship was actually a conspiracy; Arrow’s fiancée was taken, he lost his father, his territory was seized, and on top of that, he was framed and exiled to the extreme frontier. Just as Arrow was despairing in the depths of hopeless disappointment, his life reached a turning point when he met a girl named Athena, who claimed to be a "Goddess," at his place of exile—!?