Filesize: 139MBMB
Romanised title: Aisuru Tsuma Misaki no Furinshouko
Original title: 愛する妻、美咲の不倫証拠 『旦那とどっちが気持ちいい?』→『貴方の方が…あっ、ダメッ、またイちゃうッ…!』
Released: 2011.10.28 You can download this game at here
Just a heads up, you might want to prepare to update this soon. It suffers from no-progress bug that is currently under rapid debugging. Scheduled to be fixed on May 1st at 22:00 JST.
It's out, update please. 聖騎士リアナ to v3.5