Same-sex couples and other plaintiffs in a lawsuit on Japan's ban on same-sex marriage took their case to the Supreme Court on Thursday, appealing a high court ruling last month that recognized the ban as constitutional.The move came after the Tokyo High Court concluded that the current civil law provisions disallowing same-sex marriage are still reasonable under the current circumstances, making it the only high court ruling to uphold the state's position among six rulings on similar lawsuits filed nationwide.The Supreme Court is expected to issue a single ruling that applies across all re…READ FULL ARTICLE