These two works give me the same feeling. Both stories describe the opposition between two families having an unique knowledge in doll making. Action and psychological matter are present in both. The two main protagonists try to face with their demons related to their family history.
These two stories are similar in that both deal with the supernatural in which the main male charactor is intially weak and needs a stronger female charactor to protect them but as the story progresses the male makes efforts to become stronger to protect the female, while Majo is extremly ecchi and kyousou is heavier in story line to some degree both actually have similar stories in terms of charactors becoming strong to protect the person they care for, Both stories are enjoyable,
Similar to this manga in terms of puppet duels in an effort to become a perfect being to be loved, instead of being loved by the older brother Rozen maiden the puppets are seeking love from there father, same crazy duels and so forth
Both manga involve humanoid dolls/puppets that are able to think, speak and act for themselves. Notably, the main female protagonists Kubikirimaru from Kyousou no Simulacra and Yaya from Kikou Shoujo, are not human, but one of these dolls. They are also frequently involved in combat situations.