It scared the hell out of me.
When I first started to watch the anime I had no idea what I was in for. I, personally, am not a fan of anything horror, but I was still hooked on it. When it comes to anime I'm usually good at guessing what will happen next, but not this anime, it kept me on my toes. The ending had a very nice twist that I never would have expected.
If you are a fan of horror ...