“The Justice Ministry plans to enable Japanese nationals to marry same-sex partners who have citizenship in countries where gay marriage is legally approved, ministry sources said Thursday. The ministry will issue certificates necessary for such marriage of Japanese citizens and foreigners, the sources said, adding the ministry will soon convey the decision to its legal affairs bureaus across the nation, the sources said. The ministry has so far rejected the issuance of such certificates to Japanese citizens seeking to marry same-sex partners of foreign nationality as such marriages are not approved under domestic law.”
This does not legalize gay marriage in Japan. Rather, Japan will issue the appropriate paperwork for gay citizens who wish to marry same-sex partners in other countries where gay marriage is legal, but need the proper forms to process it.