Sometimes the rating is not enough, it's more about the content, profanity and context of the show. Either way, here are the most mature 18+ anime series not.
These are the most adult oriented, inappropriate for children, pornographic, violent, mature themes, or most filled with sexual situations/suggestions of all anime.
For those of you looking for anime that is a bit more mature, like seinen anime, here's a list of the best adult anime of all time. One of the worst stereotypes about .
The 30 best ADULT ANIME list. I'm a writer and animator so the qualifying elements used to make this list have a lot of production quality, art.