A district court in Osaka, Japan has
upheld the constitutionality of the nation's ban on same-sex
The plaintiffs in the case are two male
gay couples and a lesbian couple.
The ruling, issued Monday, stated that
marriage is defined as a heterosexual union, according
Japan is the only Group of Seven nation
where gay and lesbian couples cannot legally marry.
Monday's ruling was only the second on
marriage equality in Japan.
A ruling last year in the city of
Sapporo declared Japan's marriage ban to be unconstitutional.
A lawyer for the couples said that they
would appeal the ruling in Osaka.