So far, the date for Osaka should be 23rd of April. You can get only the ticket for 23rd from ticket agencies in Japan.
Osaka Orix Theater's event calender in April 2012:http://www.orixtheater.jp/event/201204.php
But the schedule of Orix Theater on 24 April is currently vacant, and I am not sure if DT want to change the date later or not.
Hope this information helps.
I will always love you - Whitney Houston
Hi, I just wanted to say Happy Birthday to John Myung :)
Also looking forward to seeing you in April!