Magical Girl Lyrical Nanoha - Plot

Plot

See also: List of Magical Girl Lyrical Nanoha characters

The storyline follows Nanoha Takamachi, a nine-year-old Japanese girl attending elementary school, who lives with her parents and her older siblings. Nanoha's regular everyday life ends when she rescues an injured ferret who reveals himself as a young shapeshifting mage named Yūno Scrya. An archaeologist from a parallel universe, Yūno came to Earth to collect a set of twenty-one dangerous ancient artifacts named the "Jewel Seeds" (ジュエルシード, Jueru Shīdo?) that he first discovered in his own world. Jewel Seeds give living beings who come into contact with them unnatural powers, often turning them into monsters, and Yūno, injured while trying to collect them, must now rely on Nanoha while he convalesces in ferret form. He gives Nanoha an "intelligent device" (magical wand) called "Raising Heart" (レイジングハート, Reijingu Hāto?), and she unexpectedly shows strong aptitude for magic. As the two gather the Jewel Seeds, Nanoha learns magic from Yūno while continuing with her ordinary everyday life.

In retrieving her sixth Jewel Seed, Nanoha encounters another mage named Fate Testarossa and her familiar named Arf. More than a year before the story began, Fate's mother, Precia Testarossa, went insane when her daughter Alicia died, initiating "Project Fate", an illegal research program of cloning and resurrection, making her a fugitive from the interdimensional police known as Time-Space Administration Bureau (TSAB). Precia cloned Alicia to create Fate and implanted her with Alicia's memories; nevertheless, she cannot care for Fate as she did for Alicia and abuses her regularly. Despite this, Fate is extremely loyal to her due to Alicia's happy childhood memories, which she takes as her own. In the series, Precia uses Fate to collect Jewel Seeds and reach Al Hazard, a mythical world where Alicia could be truly brought back to life.

Nanoha and Fate repeatedly face off against each other over each new Jewel Seed they find, and the TSAB soon interferes to prevent the collateral damage caused by their battles. Nanoha eventually manages to overpower Fate and brings her to the TSAB, prompting Precia to abandon her and attempt a dimensional jump to Al Hazard with the power of the few Jewel Seeds that Fate managed to gather thus far. Gathering her resolve, Fate decides to aid the TSAB and Nanoha in their fight to stop Precia. Although they manage to minimize the destructive side effects of using the Jewel Seeds, they fail to prevent Precia from finishing the spell, and her final whereabouts are unknown. Fate and Nanoha decide to become friends, but Fate must first travel to TSAB homeworld to prove she was an unwilling accessory in Precia's crimes.