There have been foreign couples divorcing in Japan.
One of the big issues of the foreign couples divorcing in Japan is alimony, which might be paid by a spouse (mostly husband) to the other spouse (mostly wife) for more than 20 years and sometimes amount to US 600,000.
This issue is related to the governing law of the divorce of the couple, which is related to the nationality, domicile and the place of the most closely related to the couple.
In detail, please see the attached.