The beginning of modern manga as an art form in Japan was in the late 1940’s during the American occupation of the country after the end of World War II. The G.I.’s and the other occupational forces introduced American comics and cartoons to the Japanese populous. Very soon after, the Japanese proclivity for introducing sexual themes into their stories and artwork had made its way into their portrayals of comics and cartoons.
Whenever the content of mangas (comics) or anime (animated cartoons) deals with sexual material it is known as hentai. Hentai comes in many forms from very benign such as ecchi (soft porn) to very explicit sexual material like futanari (dickgirls) and BDSM (bondage/sadomasochistic). Hentai mangas are usually published as an anthology of short stories dealing with different topics, but there are a few publications that deal with a specific topic.
Hentai bdsm mangas deal with stories that are very intense and boarder on the dark side of sexual relationships. In these stories various individuals are tied down or tied up in different circumstances and are forced to have sex. Many storylines deal with a woman in an all girl institution such as a college or university who discovers a secret cult or society and is captured and bound by its members. There are also stories where the women are superheroes and are captured and subsequently bound by their nemesis and sexually stimulated.
Because most hentai bdsm manga publications are produced in Japan, it was difficult for fans of the fetish to obtain copies of their favorite stories. With the explosion of the internet, it is now possible to find any hentai bdsm manga online on via many of the websites that cater to this hentai category. There are both free and ‘pay for play’ websites that offer strictly bdsm material.