Holy crap, this anime is like, great, although more for the mature audience, it has a plot that twists and turns in every direction, however the anime ended too quickly and it left too many things unknown, what happened, there wasn't enough time to get into it, so instead of the 10/10 it would have deserved, it gets a point knocked off for a dissappointing ending...
I recommend this to the blood lovers and the sword fighting and action lovers as well.
9/10