Miki is one of the Guardian Characters in the anime and manga series 'Shugo Chara!'. She is the second Guardian Character to hatch from Amu Hinamori's heart egg and represents Amu's desire to be cool, artistic, and level-headed. Miki is known for her calm and serious personality, as well as her artistic talents. She often provides Amu with creative inspiration and helps her transform into 'Amulet Spade', allowing Amu to use special abilities in her quest to protect the Heart's Eggs of others.