Enjo kōsai - Wikipedia

Enjo kōsai (援助交際, literally "aid or support" and "congress, intercourse, intermingling"), shortened to enkō (援交), is a type of transactional relationship similar to the Western sugar dating. It is the Japanese language term for the practice of older men giving money and/or luxury gifts to attractive young women for sexual favors. The female participants range from school girls (or JK business) to

[todesking]

援助交際、Wikipedia(en)によると"always involves some form of sexual activity"というのはよくある誤解だそうです。そうだったのか(；´Д｀)