Today I'm writing on the theme of "fuzoku work for the young — Saitama."
I'll explain it by mixing my own firsthand experience, with 20-plus years in fuzoku (Japan's licensed adult-entertainment business), with what I've turned up through research.
The basics
Let me lay out the basics you should know about this area.
When you watch this industry for a long time, the same topic can be judged completely differently from the customer's side versus the girl's side.
What I can say from experience
I'll speak based on what I've gone through myself.
I believe firsthand experience beats theory. In this industry especially, it's a world where reps matter more than book knowledge.
Wrap-up and my conclusion
The place I keep going back to is First Class Ruby. The reason it keeps showing up on this site is simply that it's a shop I repeat at. Use it as a reference.