Nanae Kato

In a fairy tale come to life, the clumsy, sweet, and gentle Ahiru seems like an unlikely protagonist. In reality, Ahiru is just as magical as the talking cats and crocodiles that inhabit her town—for Ahiru really is a duck! Transformed by the mysterious Drosselmeyer into a human girl, Ahiru soon learns the reason for her existence. Using her magical egg-shaped pendant, Ahiru can transform into Princess Tutu—a beautiful and talented ballet dancer whose dances relieve people of the turmoil in their hearts. With her newfound ability, Ahiru accepts the challenge of collecting the lost shards of her prince's heart, for long ago he had shattered it in order to seal an evil raven away for all eternity. Princess Tutu is a tale of heroes and their struggle against fate. Their beliefs, their feelings, and ultimately their actions will determine whether this fairy tale can reach its "happily ever after." [Written by MAL Rewrite]

Since childhood, Tadahiro Amatsu has two different-colored eyes - one brown and one light hazel. But because of a dark secret behind his left eye, he's become a target for the masked sorcerer Ayatara Miramune and his band of demons. To combat the demons appearing all over town, Yuzu Hieda, a priestess in training, recruits four other girls from her high school. Under the supervision of Yuzu's elder sister Kurako, the five young priestesses must undergo months of training to master their abilities. (Source: ANN)

Young girl Amu is blessed with three tiny guardian spirits and gains the power to transform and fight alongside a group of fellow students to free others' hearts from corruption.