The Japan Restoration Party was formed on 12 September 2012 and was lead by mayor of Osaka, Tōru Hashimoto, and Shintaro Ishihara. The party split in 2014 due to a disagreement over a merger with another party. Ishihara left to form the Party for Future Generations (Japanese: 次世代の党 "Jisedai no Tō") on 1 August 2014.