Egnaro

Overview
Egnaro is a Japanese fangame made by SDS and RAHU. It stars Yuzuka (ゆずか).

Very little is known about this fangame. It was discovered by some members of a Chinese forum in July 2013 by highlighting all of the text on Yume Nichiroku's website and finding a hidden link to another web page. However, as none of the archives of the defunct website seem to have the link, the game is presumably lost media.

Source
https://tieba.baidu.com/p/2277760955?pid=35849126569&red_tag=0768193722#35849126569