It's here:
http://fly-system.net/product/mba/index.htmCharacters:
http://fly-system.net/product/mba/chara.htmA few i don't recognize, but any game that has Nanoha, Card Captor Sakura and Lina Inverse together is an instant win. And to top it off it has many other Nanoha favorites, like Fate, Hayate (uberwin!) and Vita (Too bad Signum is missing, she's badass). Has also Naga to keep Lina company and tease her about her boobs :D
With characters like these i do wonder if there's a boss, and wonder who'd be badass enough to take on all that magical girl firepower, Nanoha alone is a walking artillery array, the legendary White Devil XD