If you walk through Tobita-shinchi or Matsushima-shinchi in Osaka, you will see a row of similarly constructed houses, with a girl sitting in the back of each house.
As you are walking along, a yarite-babaa in front of the girl in each house will say to you, "Hey, brother". If she is the type of girl you like, you say "OK" to the yarite-babaa.
Then you go to the second floor of the house with her and pay about 10,000 yen for a cup of tea and some snacks.
You make love with her for 20 minutes, and after that, the food and beverage fee goes up by 5,000 yen for every 10 minutes you extend the time of love.

https://www.youtube.com/watch?v=9CteKFofwHM