Im not sure where you can get it now, but I bought mine thru Otaku.com

They were able to get it from the JP store and send it directly to me. But that was a few months ago. I use them whenever I cant get something in the NA shop because its either not out yet, or is sold out.

Alternatively, if you are near Tokyo, maybe look up the Artnia cafe. They sell SE character goods, may be worth a shot. If nothing else the Moogle Pancakes there are delicious ^^;