I ♥ You!

There once lived a programmer, a real genius one. He didn’t live too long, though: the world’s imperfections made the genius soul-sick, to the point when one rainy day he took his life. All that was left from him were his small apartment with a game disk inside – the game was a visual novel about a virtual girl. This girl, Cassiopea, was an embodiment of its creators dream: she was pure and immaculate, ready to carefully listen to everything that the player says and fully trusted them.

[From Steam (Page removed)]