This game is released in 1998 by Takuyo [拓洋興業] company in windows95/98 platform love game, they claim that this game uses dozens of real love data to help the game become more realistic, I tested on the Japanese version of Win98, but the installation of DirectX error, because there is no test on XP/win95, so I do not know whether XP or Win95 can be installed properly.
There is some link about this game's information:
https://ja.wikipedia.org/wiki/%C3%89tude_prologue_%E3%80%9C%E6%8F%BA%E3%82%8C%E5%8B%95%E3%81%8F%E5%BF%83%E3%81%AE%E3%81%8B%E3%81%9F%E3%81%A1%E3%80%9C(Wiki)
http://www.takuyo.co.jp/products/etude/(Official Site)
http://www.psmk2.net/ps2/soft_06/lslg/etude.html(Review,Japanese)
