Original Title: GHQ～千尋学園裏学園祭～（Windows版）
Romaji: GHQ ~Chihiro Gakuen Ura Gakuensai~
Release Date: 2002/10/18
Company, Producer: Luchs
VNDB link: https://vndb.org/v4947
With patch ghq_update01.lzh
As mentioned here https://web.archive.org/web/20100924212959/http://luchs.jp/luchs/sup.html
Romaji: GHQ ~Chihiro Gakuen Ura Gakuensai~
Release Date: 2002/10/18
Company, Producer: Luchs
VNDB link: https://vndb.org/v4947
With patch ghq_update01.lzh
As mentioned here https://web.archive.org/web/20100924212959/http://luchs.jp/luchs/sup.html