Ran is outgoing and athletic, Miki is mellow and artistic, and Su is sweet and motherly. They are more than just Amu Hinamori's "Guardian Characters." They keep themselves busy trying to understand human concepts, ranging from the changing seasons to forging friendships with the other Guardian Characters. Shugo Chara-chan! explores the not-so-mundane life of the trio when they are not fighting off the Easter Corporation with their human partners!