When Train was fighting Sephiria Arks on top of the construction site, Creed was watching from the alleyway, where he was confronted by Nizer Bruckheimer and Ash.
After Creed killed Ash, Nizer commented that he wouldn't be done away by a "invisible sword", because he could see the sword, with it coated in Ash's blood. Creed's sword extended, striking Nizer but failing to kill him.
When Nizer was struck, he said:
We don't use that alien technique in Chronos
which I assume he was referring to Creed's sword, but what did he mean by alien?
This is from the English dubbed version by Madman.