That's a pretty cool drawing by Obari, you're 
lucky!!  Did you get it from EBay or Yahoo?  Just 
curious.

I'm looking for Obari's sketch too, but no luck.  
I wish I was able to go to A-Kon a few months ago 
to meet him directly.  I know some people who 
went to A-Kon and got sketches from him...but 
none of them were willing to sell them to me... :(