I created a new VM on Japan-west successfully. But some applications which interact with local(in Japan, of course) service, are not work. Finally I found the reason. The local service has IP restriction which is quite common in game industry of Japan. They have IP restriction based on location of IP address.
For example, look this site http://whatismyipaddress.com/ip/138.91.19.101. It shows that the location of this IP address(138.91.19.101, public IP of my VM instance) is in the U.S..
Maybe there's delay to update data center's location, or maybe there's some messy reasons on the network structure, however, I think the Azure VM should have IP addresses that are recognized as a local geo-location.
Can I get explanation about geo-location of IP addresses in Japan-west region to solve my problem?