I always think in Australia there is one agency who provide girls, somehow when the girls first came, they always go to Ginza first, then as they aged or asked for rate increase, they got sent to other shops?

Ginza, in my thought, might be the Agency themselves, and they used to distribute girls to other shops ie FiveStar, but later on decide to open their own shops...

Being Agency is not easy because you cant just recruit anyone, you gotta have your boys to try them out first, and the paperwork must be so hard to do as well these days.