Shugo chara:Utau Tsukiyomi

Character understanding:
Name:Utau Tsukiyomi
Age:17
Status:Easter employee
Utau is Ikuto's younger sister and a model-turned-singer for Easter. Her manager Yukari Sanjo uses Utau's singing to bring out their X Eggs when searching for the Embryo. She wants the Embryo to grant Ikuto's wish. She is very attached to him and is jealous of Amu because of Ikuto's interest in her.
Utau has two Guardian Charas, Iru and Eru. Iru is devilish and bullying, and Eru is kind and sweet. Because Iru and Utau ignored Eru, Eru ran away and landed in Amu's care. They transform together as Amulet Angel. Meanwhile, Utau gets hold of the Diamond Egg that was Amu's. Utau and Dia transform into Dark Jewel. Later, since Utau becomes obsessed with Dia, Iru runs away and transforms with Amu making Amulet Devil.
After Easter's plans fail to find the Embryo, she becomes a siner on her own and admits that Amu is best for Ikuto. She also finally transforms with Eru, Seraphic Charm.