The DEMO version only includes 4 pages:
http://stda-ice.com
http://stda-ice.com/2022/09/29/27.html
http://stda-ice.com/2022/07/21/かっこいいおじさんの特徴とは？.html
http://stda-ice.com/2022/07/12/14.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/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page