In recent weeks, people have posted stories to the aggregator website Matome Naver, telling how in one case, a colleague married their friend of 10 years.
Japanese actress Maki Horikita married co-star Koji Yamamoto in 2015 after just a month of dating. Magazine last month compared hunting for a marriage partner with suicide.
There is no real evidence that the kousai zero nichikon trend is taking the far eastern islands by storm.
The trend has been coined "Kousai zero Nichikon": roughly translated as "marrying without dating." Japanese actress Maki Horikita married costar Koji Yamamoto in 2015 after just a month of dating.
A column in the Joshi Spa magazine last month compared hunting for a marriage partner with suicide.
For example, in The Tale of Genji, written in the early 11th century, men are frequently moved by the beauty of youths.
In one scene the hero is rejected by a lady and instead sleeps with her young brother: "Genji pulled the boy down beside him ...
This term was widely used to refer to some kind of male–male sex in a pre-modern era of Japan.
The term shudō (衆道, abbreviated from wakashudō, the "way of adolescent boys") is also used, especially in older works.
A government survey found 69% of Japanese men and 59% of Japanese women do not have a romantic partner.
One Japanese aggregator website has since been awash with stories of how people have simply married lifelong friends.
Genji, for his part, or so one is informed, found the boy more attractive than his chilly sister".