Mizuto is a young fighter pilot who’s spent years chasing enemies through the endless blue. But the day he finds a girl with broken wings fallen on a remote island, everything changes.

She doesn’t remember her name. She doesn’t belong to his world. And yet, when she smiles at him, he can’t help but feel that he’s known her forever.

As the war rages far beyond their horizon, Mizuto and Melahi find a fragile peace in the quiet skies between battles. But angels were never meant to stay in a world of men - and when her purpose is revealed, Mizuto will have to decide what he’s willing to lose for her to fly again.