Utau Hoshina (ほしな歌唄, Hoshina Utau) is one of the main characters in the anime and manga series, Shugo Chara!. Utau is a high school student turned singing idol. Utau Hoshina is actually only her stage name, since her actual name is Utau Tsukiyomi (月詠歌唄 Tsukiyomi Utau), and she's Ikuto's younger sister. At one point she was in love with Ikuto, constantly trying to win his affection and forming a rivalry with Amu. However, she eventually became friends with Amu and got over her incestual feelings