Sakuma has served as a Valkyrie for centuries, smoothly escorting thousands of souls to the grand halls of Valhalla. While the world tears itself apart during WWII, he is summoned to retrieve the soul of a fallen Japanese soldier, Ishii Hiroshi. To Sakuma's surprise, Ishii refuses his invitation to eternity.The two meet again and again as the war repeatedly sends Ishii to death's door, and what should have been a fleeting encounter becomes something much greater for the both of them.Sakuma is determined to give Ishii the reward he so deserves, but Ishii's stubbornness may condemn him to an eternity outside Valhalla.