The original video performed by hitomi (under the name Minami Hokuto) that inspired Magical Girl Lyrical Nanoha. It is from Triangle Heart ~Lyrical Toy Box~, a merchandise CD released on June 29, 2001 for the eroge video game Triangle Heart 3. <br><br>
The CD contains a large amount of fan material, including a number of visual novel-like stories called "mini-scenarios". One of them, entitled "Magical Girl Lyrical Nanoha", cast Nanoha Takamachi (a minor character in the TH3 canon) as a magical girl and served as a prototype for the Magical Girl Lyrical Nanoha anime series. 

Fiasse is a world-renowned singer. She is now the headmistress of a special Singing School who does a Charity World Tour every year. Her mother left behind a inheritance for her after she died and some shady people are after Fiasse and the inheritance. Bring in Ellis, and two siblings who are master of the swords to protect Fiasse. The World Tour is coming up and Fiasse will continue the show. Ellis, Kyoya, Miyuki and company must protect their childhood friend at all costs.
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(Source: Anime News Network)

3rd grader Takamachi Nanoha stumbled upon an injured talking ferret after hearing his telepathic cries for help. The ferret turned out to be Yuuno, an archeologist and mage from another world who had accidentally scattered the dangerous Jewel Seeds throughout Earth. Without the strength to collect the Jewel Seeds, Yuuno had resumed a ferret form and needed someone else to take on the task for him. He gave a red jewel to Nanoha explaining to her with this she could transform and use magic to combat the monsters that threatened them due to the Jewel Seeds. But the monsters are the least of their worries, as Yuuno and Nanoha are not the only ones out to collect the Jewel Seeds. 

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