Utau Hoshina

Utau is a high school student turned singing idol. Utau Hoshina is actually only her stage name, since her actual name is Utau Tsukiyomi, and is Ikuto's younger sister. She was in love with Ikuto and was constantly trying to win his affection. Utau in Japanese is "to sing." The root word Uta means "sing." In the beginning of the series, she had a strong dislike for Amu and was jealous of the attention she recieved from Ikuto. However, she eventually becomes friends with Amu. Utau was an independent artist (with her hit song, Meikyuu Butterfly) and the vocalist of the indie band "Black Diamond," produced by her manager, Yukari Sanjo, as a method of using the CDs of their music to draw the heart's eggs out of children and make them into X-Eggs. When the plan fell apart, Utau quit Easter Company with her manager and became a singer on her own, without Easter contracting her.