one jk cafe allows our cameras inside. we find it full of adult men paying for the company of schoolgirls as young as 16. what kind of customers usually come in here? translator: most are in their 30s, 40s, and 50s, says this 18-year-old. she says they talk about school, work, and life. reporter: the care owe can i machine, full of a teenage favorite. these girls all dressed in their actual high school uniforms, earn about $8 an hour to socialize and serve food and drink to men often more than device their age. sometimes customers bring expensive gifts. sometimes they want more than small talk. has a customer ever asked you on a date? translator: all the time, but we have a no dating rule.