Sei fûzoku document 2: The kairaku (1992)

Shinjuku's Kabukicho district is a hub for all kinds of sex-related businesses. In fact, most of these businesses did not originate in this area, but rather were born elsewhere, drawn to Kabukicho, and then spread throughout the country. SM clubs offering nurse role-playing, hotel escorts based in Shinjuku, and nighttime sex services that are secretly gaining popularity. A reporting team follows the realities of these new sex-related businesses...