| Manga can be loosely considered japanese comics. It is often black and white.
Many anime started as manga versions before being popular enough to get a shot at being anime (Naruto, Bleach, Love Hina, GTO, Claymore, Negima, Lovely Complex, etc).
Sex is not a regular component of most manga. That said, innuendo and titilation (lewd and naughty scenes/acts commonly defined as ecchi) is somewhat more common in japanese manga than you would see in western comics.
As for sex-comics, one would guess that you're referring to hentai manga or hentai doujins. Hentai is well, hentai, so obviously those type of media are naturally focused on sex. |