Age: 11-13
Birthday: September 24
Horoscope: Libra
Height: 154 cm
Weight: 38 kg
Blood type: O
Guardian Chara: Ran, Miki, Su, Dia

Amu Hinamori, the series protagonist, is a student of Seiyo Elementary. Amu's classmates see her as a "Cool and Spicy" girl, but Amu is actually extremely shy and timid. Part of the reason for this misunderstanding is the trendy punk clothing her mother buys for her as well as the way in which she expresses her shyness and avoids doing new things. However, when Amu wishes for the courage to be reborn as her "would-be self", three colorful eggs appear the next morning, which later give birth to Amu's three Guardian Characters: Ran, Miki, and Su.