性奴交換指導 ～とある学園長の欲望劇～ DL版
Info:
http://www.getchu.com/soft.phtml?id=675805
http://www.morning-net.com/seido/
Japanese Title: 性奴交換指導 ～とある学園長の欲望劇～ DL版
Romanji: Seido Koukan Shidou ～Toaru Gakuenchou no Yokubougeki～
Release Date: 2010/02/19
Compañy: もーにんぐ
Preview:
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but also I find much of the link already dead.. No wonder though since it's like the game posted in 2013/-2015