Eleven year-old Saga Bergmann lives with her grandmother Regina in the small German town castle mill. Sagas mother, a renowned concert pianist and composer, died three years ago in an accident. After this saga was very closed and hardly goes out of itself, yet it is always friendly and polite. She is really happy only when they can play on the piano, her mother, which in a retail music dealer is a friend.
One day the little Saga meets Sugar, which saves them from starvation. Sugar is still quite young and still in training, and in order to complete it, must the Sugar Kirameki sees who brings their magic flower to full bloom, but they do not know what the Kirameki is.