A violent coup leads to Blake fleeing Menagerie and swearing revenge upon the White Fang. She's aided by the ghost of Raven that needs someone to save her still living daughter from her fate as the next Spring Maiden.

Luckless detective Alex Spencer dies of bad habits and is reborn in Konoha.

Fate may have prodigious talent at martial arts, but she's socially awkward and terrified of actually talking with her peers. It's unlucky for her that Nanoha notices this, and delight's in pushing Fate out of her comfort zone. High school setting, because we really needed another highschool!AU, right? Eventual romance, but it's gonna be a while getting there.