Fruits Basket Relations

Ok, I already know all the members of the zodiac are related, but just how are they related? This came about when I noticed how similar Shigure and Hatori looked. (I've only read up to vol.3 of the manga, but spoilers don't bother me) So I was wondering who was brothers, sisters, or whatever, with everyone else. Can yall fill me in?

 

Yuki and Ayame are brothers. I believe that's the only immediate family relation among the thirteen (cat included) but I could be mistaken. The rest are all cousins of some sort.

I know that Shigure, Hatori, and Ayame all went to school together and have been good friends for years.

~Shadrach Anki

 

Let's see, Kisa is the niece of Ayame and Shigure... Ayame and Yuki are brothers as Shadow said, so Yuki is also her Uncle. Hmmm... and I dunno bout the rest. Kisa's mom must be Ayame, Shigure, and Yuki's sister, so... that would make all of them brothers! But... I'm sure Shigure would have mentioned that... so... maybe that's why Yuki lives with him?

If you haven't noticed, this series really dosen't make sense when it comes to details. ^_^