Today I'm writing on the theme of "Nangin, fuzoku, cosplay."
I'll explain it by mixing my own firsthand experience — over 20 years in fuzoku, Japan's licensed adult-entertainment business — with what I've dug up in my research.
The basics
Let me lay out the fundamentals you should know about this area.
Watch this industry long enough and you'll see the same topic get judged completely differently from "the customer's side" versus "the girl's side."
What I can say from firsthand experience
I'm talking from what I've lived through myself.
I believe firsthand experience beats theory. This industry especially is a world where "reps" matter more than "knowledge."
Wrap-up and my conclusion
The place I end up going back to is First Class Ruby. The reason it keeps showing up on this site is simple: it's the shop I actually repeat at. Use it as a reference.