Synopsis: The Frontier Lord Begins with Zero Subjects - Tales of Blue Dias and the Onikin Alna

In accordance with his parents' desire to assist others, Dias persisted in warfare and attained their goal. His remarkable military career resulted in him being bestowed the moniker "Hero of Salvation," and he was given a vast estate by the king as a reward. In his new territory, he crosses paths with Aruna, a horned Kijin girl, and begins to live the life of an aristocrat at a relaxed pace.