The Kansen series is about a STD that turns people into sex crazed maniacs. I'm not big on NTRs, slave training and stuff like that cause mostly I want to think Humanity isn't that far gone yet but i can stomach this cause their not really humans anymore i guess. This title is full of rape, gangbangs and people trying to run away. It's like a zombie series just replace flesh eating with hardcore sex. The artwork is really nice. They drew semi realistic girls and guys where all the girls aren't sporting M-cups and all the guys won't passout from blood lost when they gethard.

The sound effects and music aren't over powering and loud. The VA is good for a hentai.

The characters aren't totally stupid but you don't really get to know many of them before they change and change quickly.