Viktoria Dahlgrun also manages to casts this spell, which she referred to as External Style "Tendō Suigetsu" (外式「天瞳・水月」 Gaishiki "Tendō Suigetsu"), by drawing a mana blade from the tip of her Device Blaue Trombe. It is not known if she is just imitating or has learned it from Mikaya.