Symphogear characters and Nanoha characters AU really easily into each other, I think

in Hayate's case, the book of darkness could VERY easily just be a relic in the symphogear universe

and Hibiki is already the conceptual lovechild of Nanoha and Subaru

(...has anyone ever tried turning keyblades into fisticuffs. fistikeys...)

Kairi as a symphogear wielder... she could pull it off!

Hayate already exists in Symphogear, Miku just hasn't fully awakened to her Harem Master potential.

Kairi would probably be using Excalibur or something.

TRUEEEEE...

kairi and hibiki solidarity in holding big swords that shoot big beams... not that hibiki kept hers