During my time in Japan, which was late '90s, I either got very lucky or I had a little more skill than others in working the system. I got phenomenal service, especially at Hinomaru where CBJ was "house rule". I don't think I ever got one CBJ there, and two offered BBFS. I remember one supermodel type, she looked at my cock, and said, "I like your penis. You're a lucky boy today. You get full service." After she hopped on, came three times to my one, she declined Y30K for takeout. Frankly, she was way too good looking for Hinomaru. Solid 9+ runway model type. 5'9"
There was another one, where the front said "no assfuck" where I wasn't even expecting FS. Well...guess what happened about 5 minutes into the session, in the shower....apparently my tech was used to taking on larger objects in her rectum than my cock. Since I am a mere guest in her country, who was I to refuse her demand?
About the only places I couldn't crack, no one who isn't Japanese isn't cracking them. I learned about 1000 words of Japanese before visiting, and tried to play the game by their rules (wear suit, bow, try to speak some japanese, use humor when necessary, especially with the girls, show you know the culture a little, etc.). Where there was a window of opportunity, it usually allowed me to pass through.
Japan is tough. It is vehemently racist and xenophobic in the sex services business area. But consider that all organized crime worldwide is necessarily politically right wing. So, you're going to have a lot of racism. This shouldn't be a surprise. But...at the end of the day, people are people pretty much the world over, and if you can show them you fit in some way, doors open. And there's nothing like a J-girl opening her legs, I mean door for you!