Same-sex marriage is not legal in Japan. Article 24 of the Japanese constitution states that "Marriage shall be based only on the mutual consent of both sexes and it shall be maintained through mutual cooperation with the equal rights of husband and wife as a basis."
On March 27, 2009, it was reported that Japan has given the green light for its nationals to marry same-sex foreign partners in countries where same-sex marriages are legal. Japan does not allow same-sex marriages domestically and has so far also refused to issue a key document required for citizens to wed overseas if the applicant's intended spouse was of the same gender. Under the change, the justice ministry has instructed local authorities to issue the key certificate—which states a person is single and of legal age—for those who want to enter same-sex marriages.
Since May 15, 2012, the Tokyo Disney Resort has allowed symbolic (not government recognized) same-sex marriage ceremonies in its Cinderella's Castle hotel. On March 3, 2013, its first same-sex marriage was held. Koyuki Higashi married her partner, who was only identified by the name Hiroko.