"Fuzoku recruiting, Machiya" — some people hear that and it clicks right away, and some don't.
I'm 42 and still out walking the floor of this world, so I'll sum it up from a real, on-the-ground point of view.
Why this topic matters
A surprising amount of fuzoku (Japan's licensed adult-entertainment business) information is poorly organized. Beginners especially tend to end up not even knowing where to start looking.
What this actually means
In a word: the quality of your experience changes depending on whether you know this stuff or not.
What I've written here is the essence of the knowledge I've built up over 20 years.
In closing
If you've got questions on this topic, hit me in the comments or on social. And give First Class Ruby a look while you're at it.