If you're looking for manga similar to Princess Tutu, you might like these titles. All recommendations are made by Anime-Planet users like you!
Princess Tutu is a duck brought to life through the magic of the storyteller Drosselmeyer. I am a Piano (from Le théâtre de A) is a short one shot about a Piano's life thoughout history. Both are heartwarming magical tales both funny, and romantic, and uplifting.
Airi has always dreamed of marrying her fated true love and living a normal, happy life – a dream disrupted forever when Aram, a prince from another world, emerges from her grandmother’s mirror. She takes the young prince home with her thinking he is a lost child, giving him a home cooked meal and a place to sleep. However, in the morning she discovers that, as the result of a magic spell, Aram transforms into a 17-year-old boy whenever it’s dark, and her kiss is the only way to change him back! If that wasn’t enough, Aram is in hiding from his older brother, the evil sorcerer Jeile, who has fallen in love with Airi and intends to make her his bride! Will Airi ever be able to find her happily-ever-after?