Investigator "Yuria Satomi" goes undercover to cover the city's rumored suspicious sex establishments (boob pubs, adult shops, SM clubs, happening bars)! Lots of trouble! Accidents abound! Even the fearless Yuria Satomi is frightened by the behind-the-scenes of sex establishments! Her Amateur are amateurs who are seasoned sex industry veterans! She puts her pride and determination as an AV actress on the line to make the Amateur cum! "Is it an unspoken rule? The rules of the establishment? I don't really get it, so I'll give you a handjob all at once~~"