Soft On Demand (ソフト・オン・デマンド, Sofuto On Demando), often known as SOD, is a Japanese adult video group of companies which has its headquarters in the Nakano ward of Tokyo.

[1] In spite of its rapid growth, it was overtaken in sales volume in the early 2000s by rival AV producer Hokuto, which also absorbed some of SOD's former companies.

After peaking in 2008, Hokuto sales have plunged while annual income at SOD has stayed level at about 15 billion yen (about US$150 million) for the 2008-2010 period allowing it to become once again the largest adult video group in Japan.

Some of its most notable approaches have been quiz shows that tested the knowledge of AV (adult video) actresses with challenging questions, CFNM (clothed female, naked male) videos that have women studying a man's penis (the "Uniforms, Undies and All Naked School Multi-Story" series), and plots where women are put under hypnosis.

[12] Outside of the adult area, SOD is also involved in producing softcore and genre movies,[13] idol videos and TV programs.

[15] A third entry was the 2014 science fiction film Danger Dolls, with SOD star Mana Sakura making an appearance.

The company has also made a significant shift towards producing more virtual reality content in recent years, and even went as far as to build an adult theme park in the heart of Tokyo, also known as SOD Land.

Sixteen companies competed for a total prize pool of 25 Million yen with the winner being decided by sales of the videos entered in the contest.

Medirin was composed of "indie" companies, independent AV studios which explored porn themes forbidden by NEVA rules and which used a smaller-pixeled censorship mosaic for their videos.