The world was once torn apart by a long war between humans and beastkin. The scars of that conflict still remain on the land, the sky, and the hearts of every generation. But as the younger generation begins to question the legacy of hatred passed down to them, a glimmer of hope emerges. This is where Shirogane Lightfield Academy stands—a school that stands as a symbol of peace, where humans, beastkin, and other races live and learn together.

Ryouhei Hirotaka, a headstrong and reckless human, enters the academy with no idea how his life will change. Together with his new friends—the savage fox Renjiro, the quiet and innocent Yukihiro, and the mysterious fairy Sylvia—he finds himself drawn into a life of laughter, conflict, and deep emotional bonds. But the apparent peace is not necessarily peaceful forever. Secrets of the past, hidden powers, and inner conflicts begin to emerge, especially when the cold girl Rinari brings a great mystery about time and destiny.