Arrow, the eldest son of a frontier noble family, lived a life of comfort surrounded by his fiancée, sister, and maids. Then, one day, Sullivan, the next head of the Asmodeus family, one of the four great noble families, visits Arrow's mansion. What seemed like a friendly visit is actually a conspiracy; Arrow loses his fiancée, his father, his territory, and is falsely accused and banished to the furthest reaches of the frontier. In the depths of despair, Arrow meets a girl claiming to be a "goddess," Athena, in his place of exile, and his life takes a turn—!?