Been meaning to post these here earlier, but things have kept popping up.
I'll try to keep it as short and clean as possible.
Yami no Koe features character corruption through different things.
Usually the "girly" boys are turned into full girls when their part comes.
I'll only post some of the "Before" and "After" pictures, you can grab the whole game sets from the following links.
Yami no Koe 1
http://rapidshare.com/files/85170390/Yami_no_Koe_1.7z
http://www.megaupload.com/fi/?d=MJLVJIHF
Yami no Koe 2
http://rapidshare.com/files/85182010/Yami_no_Koe_2.7z
http://www.megaupload.com/fi/?d=OVJ0PGLX
Yami no Koe 3
http://rapidshare.com/files/85195687/Yami_no_Koe_3.7z
http://www.megaupload.com/fi/?d=Q02U0R65
The following attachments are from the first game.
He slowly changes through various different events in the game, what I've picked are by no means all the options