What is Enjo Kosai?
1.
A form of "dating for assistance" or prostitution popular among Japanese high school girls dating middle-aged salarymen for money.
According to a recent survey of junior high school students in their final year, 17 percent thought there is nothing wrong with enjo kosai and 13 percent replied that they felt no reluctance in practicing it.
-- The Tokyo Weekender
I started doing Enjo Kosai my second year of high school. On most of my dates, I had sex. That's the weirdest thing I've ever done—meeting someone for the first time and screwing him the same day.
-- TIME, She's Only a Little Schoolgirl, as told to KATE DRAKE Kyoto
