A university professor has filed a formal complaint against Okinawa gubernatorial candidate Koga, alleging violations of the Public Offices Election Act, according to Yahoo! Japan. The complaint was reported on Sunday, September 6, 2026, amid the final stretch of the campaign.
Yahoo! Japan reports that the professor’s accusation targets Koga’s campaign activities. The specific nature of the alleged violations was not detailed in the available summary. The complaint adds a legal dimension to an already competitive race.
The Okinawa governor election is shaping up as a de facto two-way contest between the incumbent and newcomer Koga, according to separate coverage from the Asahi Shimbun. The race has shifted notably from the previous election, with the incumbent avoiding direct discussion of U.S. military bases, while Koga has secured backing from a six-party coalition. Both candidates have been actively campaigning across the prefecture, with street speeches held as recently as the morning of September 6 in Tomigusuku, per the Nishinippon Shimbun.

Public interest in the election is rising on social media, with NHK News reporting that analysis of YouTube videos shows growing engagement with the race. Meanwhile, a group of 143 doctors and other medical professionals has placed opinion advertisements in two local newspapers, urging voters to reject policies that could turn Okinawa into a battlefield again, as reported by the Japanese Communist Party’s Shimbun Akahata.
With voting approaching, the complaint against Koga could influence voter perceptions. Watch for how the candidate and his coalition respond to the allegation in the coming days.






