Rozen Maiden: Ouvertüre

Set during the second season, the story between Shinku and Suigintou is told by Souseiseki when Jun buys Shinku a brooch. The first OVA starts with the creation of Sugintou, Rozen's first doll, which he abandons and moves on to create the rest of the Rozen dolls, ignoring Sugintou's cries for help.