The DEMO version only includes 4 pages:
http://35-35.net
http://35-35.net/aozora/aozora_premier-jnlp.html
http://35-35.net/aozora/index_a.html
http://35-35.net/aozora/ranking.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com to buy a fully functioning site.
Go back to the index page