Queen's Fleet.Agnese explains they are on a fleet of magic ships called the Queen's Fleet, where she and her battle nuns are being punished. She agrees to let Tōma and Orsola escape in exchange for rescuing Lucia and Angelene, who are at risk of having their brains restructured to prevent them from casting a spell that would allow them to escape. As Agnese goes to the fleet's flagship to confront Bishop Biagio Busoni, the fleet's commander, Tōma and Orsola manage to find and rescue Lucia and Angelene, who say that Agnese is in danger of being used for a spell that would destroy her brain. Just then, the other ships start shooting at them, causing them to fall into the sea, but they are rescued by Index and the Amakusa Catholics using a magical submersible boat. After learning that the spell Biagio intends to use Agnese for has the power to destroy cities and erase their culture, the Amakusa Catholics agree to help Tōma rescue Agnese. They launch an attack on the fleet, where Tōma and his group face up against the battle nuns. But when the other ships try to sink the ship where both Tōma's group and the battle nuns are, Angelene gets injured saving one of the nuns.