I have reached Yuki nirvana
The price is surefine but in the Japanese FAQ/QA they specifically say " Currently, support for purchasing and viewing from outside Japan is not supported. We plan to support ticket sales for overseas customers as well, but at the moment, we are not ready for purchasing. "So ticket price is around 40dlls. Not bad, I think.
It seems you need a Japanese address and credit card to purchase ticket from e+, buuut I found this: https://ib.eplus.jp/index.php?dispatch=pages.view&page_id=47
So even if you got a ticket as in your link, what are the odds of the stream itself working? :(
Assuming it is just a "stream" not a download you can work around, you'd also have to have a decent VPN and hope that it even works via a VPN.