Banished Sage's Frontier Child-Rearing Slow Life

Despite being the hero who single-handedly defeated the Demon King, Sage Cain was feared as the "Scum Sage" due to his intimidating face and a slight misunderstanding, and was consequently banished from the kingdom. Living a lonely life alone in the frontier lands, one day a package suddenly arrived from the kingdom. Inside was none other than Philionora, the Demon King's daughter, possessing immense magical power! And by some twist of fate, Cain ended up having to raise this daughter, Philionora—?!