Board Thread:Questions and Answers/@comment-11531213-20130704112131/@comment-2188433-20130704133056

Not prototype of Murakumo Unit, Sealed Weapon Izayoi is a prototype of Nox Nyctores, Lux Sanctus: Murakumo. It seems like she can summon swords like Murakumo, but as we see it has different form.