Did you know that your Japanese spouse can divorce you without your consent? The article describes what happened in one such case in Kumamoto.
http://www.japantimes.co.jp/news/2016/03/04/national/social-issues/japanese-law-failing-prevent-fraudulent-divorces-advocacy-group/#.VtmJs8e5gpY
Japanese law failing to prevent fraudulent divorces: advocacy group | The Japan Times
Is it "too easy" to get a divorce in Japan? There is an increasing number of cases of foreign women claiming their former Japanese husbands divorced them b