Magical Girl Lyrical Nanoha

Yuuno Scraia is a mage from another world who caused Jewel Seeds to scatter across the planet. Now he's trying to fix the mess, but after a failed attempt to seal one, he ends up stranded on Earth-stuck in the form of a ferret. The battle isn’t over, though, and he can’t do it alone. When Takamachi Nanoha hears his telepathic plea for help, she answers. With the magical artifact Raging Heart, she becomes the magical girl Lyrical Nanoha, wielding a staff to fight the darkness inside the Seeds. Her task is to seal all 21 Jewel Seeds, but another force-Fate-might stand in her way.