[[Btw " are typically for words spoken aloud but you use ' instead. I want to confirm this is your style and I would also like to know what punctuation you use to signify internal thoughts so I can tell what Katai knows and what things only I know.]]
Katai heard someone nearby yell, by the time he reached the source of the yelp he saw one of the white figures run into his neighbor's house. He remembered the kid who lived there was about his age though the only other thing he knew about him was the racket that came sounded like sword practice. They didn't mean who ever ran in there though was that other kid, and that also didn't mean the kid was any good.
'W-What the hell just happened?'
Fortunately the kid really could fight, though the weapon he was holding seemed unusual. Katai could feel it...although he wasn't sure since his own training in magic was self-taught it seemed as if the key shaped sword was reacting to whatever was going on in the town.
"That was impressive." he strode to the window to look at the view. "I don't know what that" he pointed, "-is but do you hear the people? It sounds like they're dying. What do you say we kill more of these freaks before we're all that's left?"
Katai's voice was cold as iron, a deceptive calm betrayed by the fire in his eyes and the grip on his walking stick.