"Soapland, paipan (fully shaved), Warabi" — some people hear that and instantly get it, others don't.
I'm 42 and still working the field in this world, so I'll lay it out from a real, on-the-ground perspective.
Why this topic matters
Information about fuzoku — Japan's licensed adult-entertainment business — is surprisingly disorganized. Beginners especially tend to end up not even knowing where to start looking.
What that actually means
In a word: "knowing or not knowing changes the quality of the experience."
What I'm writing here is the essence of the knowledge I've built up over 20 years.
In closing
If you've got questions about this topic, hit me in the comments or on social. And check out First Class Ruby while you're at it.