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.