recognizable among anime fans worldwide. Hentai is now used overseas to describe anime with strong sexual content.

While Mandarake capitalizes on the kinky boom, other retailers are reluctant to export such products.

Satoshi Fukuda of Tokyo-based Animaxis Inc. said hentai began to gain currency overseas around 2001 and online shops saw a corresponding growth in sales of adult products. His company, however, has elected not to focus on the kinky goods and instead continues to provide a wide range of other merchandise.

"There have been proposals within the company to stock a larger number of hentai anime to gain more sales," Fukuda said. The company has opted not to because, he said, it would be "inappropriate."