Quote Originally Posted by Jonnycbad View Post
It was probably a Doman soldier that was conscripted to fight for the Empire, we fight tons of them through the various dungeons and they use katanas.
I doubt the elezen ever fought with a katana previously. In Asahi's flashback(in 4.2 I think?), Zenos just took one from a Doman Resistance member he killed. He probably just grabbed the first one he saw laying around after he woke up.