I'M ON A KICK SOMEONE H E L P
On the disguises: I was reading up on the historical accuracy of "ninja powers," and it said somewhere that the whole "ninjas going invisible and sneaking around at night" thing is pretty much fabricated/fantasy. It was more likely that they utilized "mental/psychological invisibility"- by dressing as members of lower society, people would be less likely to pay any attention to them.
And yes, it's likely Kye smokes.
Everything else is pretty much explained in the dump.
Enjoy! ヽ(´ ▽ ` )ﾉ
Art (c) me
Story (c) me and Bee
Avatar world (c) Bryke