she is the childish girl serving as the Ace's Chair and is one year junior to Amu. Yaya often acts immature for her age, such as having an enormous sweet tooth, a great soft spot for items like ribbons as well as tending to be hyperactive. Yaya wants to be a baby forever so her parents would give her more love then her younger brother. She is also a good ballerina, but also a rather clumsy one. Yaya's favorite things are cute and babyish.