45 Greatest R-Rated Adult Anime Series of All Time

Ideally, when you think about anime, your mind instantly conjures up images of brightly colored characters, big round eyes, and slice-of-life stories. But the truth is that anime is a wide-ranging medium that covers all sorts of content and caters to audiences of all ages. Some of the best anime series ever created are rated R because they feature content and themes inappropriate for children. We aren’t talking about shows like Pokémon or Naruto here. These R-rated anime series feature complex plots, psychological depth, violence, and mature visuals.