Amu Hinamori grew up with a tough outside character and everyone in school addresses her as "Cool and Spicy", but deep down she is extremely shy and timid. One of the reasons that she has this image is because her mother dresses her in punk and cool clothing. Since she has a stubborn character, fans call Amu a tsundere, but is properly classified as a kuudere.

One night, she became tired of everybody viewing her outside character and made a wish to be someone other than herself. The next morning, she finds three odd looking eggs on her bed. The eggs hatch one after another and give birth to her Guardian Characters, Ran, Miki, and Suu; later, a fourth Guardian Character named Dia.

When Tadase Hotori, the King's Chair of the Guardians of Seiyo Academy, discovers her eggs, he invites her into their team and give her the title "Joker". Though she doesn't want to join the team at first, she eventually gives in after realizing how serious the situation is. As the person with three Guardian Characters, Amu is given the Humpty Lock with mystical powers and so receives the ability to Character Transform.

Though she does not know her true self very well, she appears to be rather determined when it comes to helping others. But as Dia indicates, she needs to know herself better in order to be able to do any good at all.

In the second season of the anime, she begins to develop her own character and so increases her own powers. The most direct example of this is the new items & skills of the three Amulet character transformations. Also, though she can't see it very well, those around her notice that she has changed.

In the third season of anime, Amu mentors and make Hikaru and Rikka Guardian Apprentices so that they can become the next Guardians after Tadase, Rima, Nagihiko and herself leave for Middle School.

Amu's voice actress in the anime is Kanae Itou.

Appearance

Amu Hinamori

Amu has pink hair and golden eyes.

She often has red 'X' hairclips attached to her hair. Sometimes she wears other colored pins, such as blue, white or black.

Because she wears gothic (or rather 'cool') outfits, everyone in school views her as "Cool & Spicy".

Guardian Characters

Unlike normal children, who usually have only one guardian character, Amu is gifted with three, and eventually, a fourth one is born. Their theme centers around the four suits in a card deck, heart, spade, clover, and diamond.

The word "Amulet" means good luck as it was said in Episode 1 of Shugo Chara Party.