The demon of Laplace. He appears as an anthropomorphous white rabbit in a tuxedo and a top hat. He is neither sinister nor kind, and tends to speak in riddles. His brief appearances in the N-Field leave the Rozen Maidens with nothing more than poetic and seemingly nonsensical advice. Despite seeming to support Barasuishou against the Rozen Maidens, and is seen dancing with Kirakishou at the end, Laplace no Ma's true motives remain a mystery. Laplace is a very clear reference to Rozen Maiden's inspiration taken from Alice in Wonderland, with appearance and personality deriving from both the white rabbit and the Cheshire cat.
It is revealed that he has been in Enju's company since before Shinku and Suigintou's rivalry began, and was searching for Rozen Maidens even then, though it is not said why.