Su is a character in the manga and anime series Shugo Chara! series. She is one of Amu Hinamori's Guardian Characters.
She is voiced by Aki Toyosaki.
She had blonde hair, green eyes. She wears maid outfit and green Clover on her hair.
She represents Amu's desire to be more caring, sensitive and improve her domestic skills. However, Su is prone to silly mistakes. She is very fond of Amu's teacher, Yuu Nikaidou. Amu gains an improvement in cooking and cleaning skills during Character Change, as well as becoming "too girly".
When Amu wishes for the courage to become her would-be self, three colorful eggs appear. When they hatch, they reveal Amu's Guardian Characters: Ran, Miki, and Su.
During Character Transformation, Amu becomes Amulet Clover with an outfit just like Su's. In chapter 38, Su undergoes a new Character Transformation with Ran, Miki, and Diamond; becoming Amulet Fortune. In chapter 44, she disappears along with Miki and Ran, and later Diamond as well when Amu no longer needs them. She and the others make an unexpected return toward the end of the last chapter of Shugo Chara Encore as they appear to be reborn again from Amu's feelings.
- X-Eggs Sense: She can sense the presence of X-Eggs and other Guardian Characters.