Shu Itsuki is a passionate seamstress with a love for dolls, french culture, and beautiful music. She is most of the time calm and collected, but can be easily annoyed and broken out of that state. Often adds french vocabulary to her speech, such as 'Non' or endearing terms like 'mon chéri'. An avid lover of croissants. Carries a doll everywhere with her, and her name is Mademoiselle. Shu loves Mademoiselle very much, and she's a part of her personality, due to having OSDD.