This may seem like old news to everyone else. But I've recently found out that Kyo and Kagami both mean mirror in Japaneses. This for me is very symbolic for the two characters. Not only does it have significants seeing that Chizuru uses the power of the mirror. But it's also got me thinking how one is simply the reverse of the other in some respects like in a mirror. You even see the similarities and the reverse in a lot of their moves. (Ex. Kyo holds his victims up and blows and unleashes a fire blast, Iori holds his victims DOWN and unleashes a fire blast)

Also i should note that Kyo also means strong (which is what Kyo is)

And Evil (IE the Kyo Chiz created in 2003)

Very interesting I think ^^