I'm not inclined to bother ranting as some have. I've enjoyed the story, although the darkness has been a bit off-putting, it is pretty much unavoidable at some point.
All that said, good times reading this. I can't help but think that you've got something really great here and it can get better.
I did notice a huge degree of grammatical issues, but somehow I was able to just read past them for the joy of the tale.