Dunno why but I imagine Saphie as Tanya Degurechaff from the anime/manga Youjo Senki for some reason ^^'

Viewer's discretion though, if you're sensitive to anything WWI or Nazi related (dont worry. No symbol of that one is present in the series), I recommend that you don't watch this. Despite that, it is an awesome series with cool details, graphics and even historical references :3