Officially licensed and translated by Gamebox corporation. There were two releases with different age ratings. This teen version, originally named 'extension version', was so heavily censored that you couldn't even finish some routes.
This "teen" version was included as a [url=https://bbs.ruliweb.com/community/board/300712/read/21772410]bonus[/url] to Aug 1999 and Jan 2002 issues of PC Game Magazine.