The dark side
While some cafes, like the one in which Eli and Honoka work, strictly prohibit dating or interacting with customers outside the business, there is a much seedier and disturbing side of JK.
CNN found businesses selling school girl massages, uniforms and even supposedly "used" underwear.
Other girls are made available for dates, which the authorities and advocates for victims of sexual exploitation warn are often a barely concealed front for child rape.
"Once you're out of the shop, even by a step, you can do whatever you want," one victims' advocate told CNN.
In its most recent report on human trafficking, the U.S. State Department warned that "sophisticated and organized prostitution networks target vulnerable Japanese women and girls."
"Enjo Kosai," or "compensated dating," the report said, "continues to facilitate the prostitution of Japanese children."
An abiding sense of shame and victim-blaming within Japanese culture prevents many girls from coming forward, says Shihoko Fujiwara, director of the Lighthouse Center for Human Trafficking Victims.
