The Tokyo District Court dismissed the complaint in a court ruling that it was unconstitutional for people who acquired foreign nationality and lost Japanese nationality to be denied dual citizenship under the provisions of Japanese nationality law. Did not allow you to have dual citizenship.
Not accepting dual citizenship is a complaint of unconstitutional law.
2021-01-21T04:32:27.117Z
[NHK] A court that complained that it is unconstitutional for people who have acquired foreign nationality and lost Japanese nationality to be denied dual citizenship under the provisions of Japanese nationality law ...
Source: nhk