Project Dualis
Here's a free anime style visual novel story of two sisters, Yuki and Yumi, who are linked together more closely than what it would first seem. Haru, a first year student in Kakunoshima high, joins the literary club and meets the shy and reclusive Yuki, but soon finds himself on a collision course with her overprotective sister... Project Dualis is a visual novel on love and the meaning of one's self.
You can check the progress of Project dualis via the developers site HERE
You can see a video of game play HERE, HERE and HERE[/b]
You can download the game via Desura HERE.