"Yoshiwara soapland traveling work (dekasegi)" — I figure this phrase clicks instantly for some people and means nothing to others.
At 42, I'm still out there 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 is surprisingly disorganized. Beginners especially tend to end up not even knowing where to start looking.
What this actually means
In a word: whether you know it or not changes the quality of the whole experience.
This is the distilled essence of everything 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 go check out First Class Ruby while you're at it.