Sugar Sugar Rune (2005)

Chocolat Meilleure and Vanilla Mieux are both witches and childhood friends, pitted against each other in a contest to see who will become the next queen of the Magic World! In order to win, the two queen candidates must attend school in the human world, cultivating relationships to bring out their classmates hearts of friendship and love... But if a witch gives their heart to a human, they'll die?! In an exciting adventure filled with transformations, mystery, jealousy, and romance, join Chocolat and Vanilla as they work alongside their knights to protect the kingdom from the threat of the Ogres and do their best to become the next queen!