"Soapland, clothed play, Nangin" — soapland being a full-service bathhouse format. I figure some people read that and immediately get it, and others don't.
At 42 I'm 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 theme matters
A surprising amount of information about fuzoku — Japan's licensed adult-entertainment business — is poorly organized. Beginners especially tend to end up not even knowing where to start looking.
What that actually means
Put simply: whether you know it or not changes the quality of the experience.
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 about this topic, hit me in the comments or on social. And give First Class Ruby a look while you're at it.