"Tohoku male night work: driver" — some people hear that and immediately get it, others don't.
At 42 I'm still out walking the floor of this world, so I'll sum it up from a real-world perspective.
Why this topic matters
Information about fuzoku (Japan's licensed adult-entertainment business) is surprisingly poorly organized. Beginners especially tend to wind up not even knowing where to start looking.
What this means concretely
In a word: "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.
Last word
If you've got questions on this topic, hit me in the comments or on social. And check out First Class Ruby while you're at it.