Lol, you're right, Piefan: we've hardly talked about Kitti at all, when she's the main character!
I was really surprised about Kitti being one of my favorite characters, since I often find the main character less interesting than the others in a show or a book series (I think that's because authors often make the main character the most "normal" on purpose, so that it's easier to understand him/her). I like how she has flaws (like her anger issues), and how she is different from the usual main character, but how she's still relatable. I also like how there are quite a few episodes where she is not the main character: that way, we get to see things from several different perspectives.
I think it's really cute how Chance helps Kitti with her anger issues, and how she helps him in return with his own problems. And yeah, Chance's outfits are awesome ^^.
Edit: I also made a drawing of
Naoki's sign. As you probably know, it's a circle with a three-petalled (is that even a word?) flower in it, and of course it's in Naoki's favorite color: yellow!