The Chief Researcher of the National Research School of Biscotti despite being the same age as Shinku. An extremely intelligent individual who is friendly at the same time, but her curiosity tends to get the better of her in various situations. Has a lot of friends in the Knights of Biscotti. Working hard to solve Cinque's "problem", and is always intrigued by machinery that she does not know about and wants to analyze them. Tends to finish her sentences with ~de arimasu.