Amidst battling alongside the Rozen Maidens, lifelike dolls created for combat, Jun Sakurada experiences a rare respite during Rozen Maiden: Träumend. His attempt to gift a brooch to Shinku, the fifth doll, is met with adamant refusal. Thus, Souseiseki, the fourth doll, unveils a poignant tale of how the initial encounter between Shinku and the first doll, Suigintou, unfurled. This narrative unveils the tragic origins of Suigintou and the deep-seated animosity she harbors towards Shinku due to a history of misunderstandings. Set against the backdrop of 19th century London in Rozen Maiden: Ouvertüre, this story unearths the hidden secrets and complex past between these erstwhile companions.