Nanoha Fanfiction: Zero and the Magical Cannon Girl

Link to Japanese Fanfiction

An interesting Japanese fanfiction of a crossover of Zero no Tsukaima and Nanoha, wherein Louise summons the White Devil to Halkeginia.

An alternate title plays upon a pun on the 'Ma' kanji, the end result is that the alternate title becomes: "Zero and the Demonic Cannon Girl".