Lyria in gorgeous ballgowns was one of my first thoughts. But this story beats them all. A good cause could be her stepmother, because everything that we could see from her was a picture in third episode. Glad you like that idea. Could you also implement in that story a wedding dress for Leila as a part of the ending? If you want? It makes the dresses marvelous giant and even protecting the wearer from dangers: like to big furniture and small doorsways.
Leila would get caught by euro-britannian forces during a new mission. There now, she would raised to a proper noblewoman and heiress by Maria Shaing and her daughter Alice as her new friend. For the time the Euro-Britannians would reclaim their old homecountry.
And Leila could help them. With the popularity of her late father killed by political enemies in Europe and her wishes for an end of the war she would get made into a figurehead of Peace and equality specially for elevens and legitimize Euro-Britannias efforts take down the corrupt Europe. While Leila still hope even crying in her new bed she gets out of this birdcage before it was to late and she could only resign and see her new fate could be sealed and locked in pampered elegance.
All my other ideas and wishes could be better used in that scenario. The dream, her new princess live, wedding and her hoopskirted new elegant dresses and gowns even her wedding dress could be designed by professional dressmakers with finest fabrics and charming accessories.
And the pampering there will be the most natural thing in the life of an euro-Britannian noble. That idea sparks in me since the first episode of the ova and fully formed in the 3rd and 5th episode. Leila is already cute and her girlish uniform especially that poofy sleeves, ruffled skirt and long boots. And she is the heiress of the Weiswolf castle which is in possession of her noble family since generations.
