Feeding lamb
My general advice: just don't. It's seriously gory. Not a little or medium gory. IT"S FUCKING APESHIT gory. In fact, I'd tag it torture porn. I regret my curiosity of seeing how it ended, cause I had to hold down nausea while doing so. You have been warned. (Yes, there is actual story and characterization, but geez...) If I were the type who supported censorship--I'm not--this kind of stuff would be on my list, right along with the worst or shota and lolicon.
When Night Falls
Three juveniles raped and murdered his sister. Years later, they are free and he wants to meet them, to ask them questions, to see if they feel remorse. But things go bad and he ends up in the hospital...with a new ability. He can enter dreams. And he can't just enter dreams, he can do things in those dreams. Now, finally, he can avenge the vicious killing of his sister...
Kirei ni Shiteyo