Meiji era, 190X year. Among humans, Blessed Warriors exist—individuals that are born with unique animalistic traits, which grant them extraordinary abilities; they usually have high status. A powerful Hanazawa clan is renowned for producing winged Warriors. General Lieutenant Hanazawa fathered Ogata Hyakunosuke in an illicit affair, and as Ogata hit his teenage years, falcon wings sprouted from his back; still, his father remained indifferent to him. He is a young Japanese ex-soldier.