 When the village is attacked by a group of samurai led by Isshin Sumeragi, Carla and her friends are captured.When Renya arrives to save them, Isshin Sumeragi's collaborator Alto Weinberg reveals that Carla is actually , the next intended Empress of Britannia.Her parents had originally sent her to Japan due to unrest within the Britannian Imperial Family, where she adopted the role of Carla within the hidden village and befriended Renya and his friends.