Dr. Muzé Kauplan is the mysterious creator of the 'Invisible 9'. She debuts in Episode 4 of the Pumpkin Scissors anime series.
In the manga, she is not the actual genius scientist Kauplan, but instead one of Kauplan's apprentices. It is said that Kauplan's knowledge is so vast that no single individual can inherit all of his knowledge. For that reason his apprentices inherit only one part of his knowledge and adopt the name Kauplan. Muze is called the Kauplan of Medicine, specializing in medical knowledge.
During the war, she and her research institute crafted super soldiers in secret to battle the Republic of Frost, which included individuals like Oland, Wolmarf, and Hans. After the war, she kept a particular interest in Oland, and may have had a hand in him being assigned to State Section III.
Captain Hunks had met Dr. Kauplan not long after Hunks had failed to convince the general staff that the destruction of the tank used by Viscount Wolkins was part of a greater conspiracy. Although Hunks was impressed by her, he was wary of the woman sufficiently enough to be cautious of her in the future... and for good reason! Some time afterward, Dr. Kauplan visited the home of Professor Kortu when Dalton, a reporter for Die Welt happened upon seeing Oland. The reporter had remembered seeing the copy of Oland's "Door Knocker" gun at Kortu's home, and was surprised to see Oland with an operating model. Not long after Dr. Kauplan's visit, Kortu died in an explosion at his home. Dalton also ended up assassinated.
Kauplan is an enigmatic figure. Even Hunks considers it sensible to be cautious around her. Her cold scientist self is acknowledged when she was revealing to Oland what lie they had spun to make the 908th H.T.T. troop.