You may have better luck grabbing an already converted set of files from this thread.
I tried a conversion with the fuwanovel files, but for some strange reason, some sections of the novel were completely gone when I played, leading to some confusing moments.
Some of the text was corrupt as well.
When i saved around those areas, the save file became completely corrupt making me lose all my progress. That forced me to sit there using the skip option for the better part of an hour.
As for your first question though, yes it is a complete package. There are no voices during the sex scenes since I believe those were never recorded.
And I don't know if my problem was exclusive to me or not, might want to wait for another opinion.