Parent story: Rozen Maiden: Träumend
If you thought you knew how the story began…Think again! Shinku may be the foremost of Rozen’s creations, but was she the first? Journey back to 19th century London and the birth of the Rozen Maidens to witness the cruel and tragic origin of Rozen’s first doll, and how, even when left abandoned and unfinished, she still fought her own way to the Rosa Mystica and the Alice Game! But leave what you think you know behind, for this is Souseiseki’s story, and what she has to say may surprise you!
(Source: Sentai Filmworks)
Alternative Titles: Rozen Maiden: Ouvertüre, Rozen Maiden: Ouverture, ローゼンメイデン・オーベルテュー