In a realm where crow-human hybrids soar, a brewing storm threatens peace. YUKIYA, a lackluster second son in a prestigious family, faces academic defeat and swordplay struggles without much concern. Yet, his unassuming nature is shattered when he's unexpectedly selected to serve the Imperial Prince at Court. Together, they navigate a web of deceit, murder, a puzzling substance, and a surprising invasion. Amidst these challenges, can they protect the mystical world of Yatagarasu, inspired by Japanese folklore?