Pornography in Japan is a large and intertwined business of adult entertainment with unique characteristics that readily distinguish it from Western pornography. Starting with erotic stories and wood block prints from before the 20th century, Japanese pornography evolved into distinct subcategories. In addition to pornographic videos and magazines featuring live actors, there are categories of pornographic manga within Japanese comics , pornographic computer games for both PC and game consoles , and pornographic anime animated depictions of sexual activity. By Japanese law, any lawfully produced pornography must censor the genitals of actors and actresses and up until the mids so was the depiction of pubic hair. Anuses are only censored at contact or penetration.
Wakamatsu , OP Eiga for release to adult theatres,. These would include the Nikkatsu Roman Porno series and Toei's Pinky Violence early 's, described in the pink film entry which have separate subcategories. Erotic films by other major studios eg.