Takamachi Nanoha is a 3rd grader elementary school girl. She lives with her parents who run a coffee shop, and her older sister and brother who are students. She was a normal girl until she met a boy that came from another world. She happens to obtain a magical power from him. After their encounter, Nanoha has to recollect ?Jewel Seeds?. They are from the other world, and are scattered around Earth.
The boy from the other world can turn into a small animal, and she has a magical wand that is materialized by Nanoha?s will. With these two, she has to recollect Jewel Seed. It will grant one?s dream, but it also causes various accidents as well.
She begins to have a friendship with the boy from the other world. She spends her secret life as a magical girl late at night, early in the morning, after school, and on vaction. She is a normal girl when she is with her friends and family.
During her adventures, there appears magical girls that has the same power of Nanoha, because of this, her peaceful life is almost destroyed.
?I do my best?so that I won?t regret? Takamachi Nanoha, a third grader, though she isn?t good at sports, but she does her best with courage, magic, and her will, that she won?t lose.
This show is a spinoff of Triangle Hearts.