The DEMO version only includes 10 pages:
http://beaunskin.co.kr
http://beaunskin.co.kr/bbs/page_hid-about.html
http://beaunskin.co.kr/bbs/page_hid-program_1.html
http://beaunskin.co.kr/bbs/board_bo_table-facial.html
http://beaunskin.co.kr/bbs/write_bo_table-reservation.html
http://beaunskin.co.kr/bbs/board_bo_table-notice.html
http://beaunskin.co.kr/bbs/page_hid-program_2.html
http://beaunskin.co.kr/bbs/page_hid-program_3.html
http://beaunskin.co.kr/bbs/page_hid-program_4.html
http://beaunskin.co.kr/bbs/board_bo_table-body.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://www6.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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