Having lost his deadly duel with Petelgeuse, Subaru Natsuki goes back in time once more. Subaru returns to the world and works with his allies to weave a new strategy all to foil the wicked plans of the Bishop of the Deadly Sins. Emilia, remaining behind in Roswaal Manor, also realizes that something lurks in the vicinity of the mansion. She urges the populace to take refuge, but the circumstances of her birth prove to be a wall she is helpless to overcome.