Nearly all of those J-pop and K-pop girl group members, save for the ones which have sustained success, end up for rent. The Admiral has fucked more than a few in Tokyo, Seoul, and Hong Kong.
I'm curious to know how you hook up with these girls in Seoul. When I was stationed in Korea, I used to go to Hooker Hill in Itaewon, Seoul and screw the street hookers or walk into the whorehouses to get some trim. I have to say, there was a lot of choice pussy that you would never find on the streets in the U.S.