Here's a news article about the concert in HK:
http://61.129.65.8:82/gate/big5/enjo...1a2619858.html
Too bad my chinese is crummy, I can't translate it fully.
Basically it talks about Ayu going to other countries in Asia. The 780 yuan seats were sold in 5 minutes, while the other seats sold out within 3 hours. It also states that due to Ayu's busy staff schedule and other circumstances, she was unable to accommodate more locations and dates which resulted in disappointed fans.