>>281253773To be honest early on I believed that Rozen may have been a normal doll maker with a daughter.
His daughter might have died and Suigintou was an attempt at recreating his daughter, but he abandoned the thought and left her incomplete, because he thought he could not recreate her that way.
So he started to create the others in an attempt to put her aspects in different dolls and through one winning and taking the others Rosa mystica she would become his lost daughter.
Suigintou being able to move and so without a rosa mystica is the result of his daughter watching from heaven.
She could not endure seeing her saddened father and came down from heaven to posses the incomplete doll.
Yet her leaving heaven was not allowed, so she ended up with black wings like a fallen angel and damaged her memory.
Well that was my head cannon when I watched the show back in the day.