Born in Tokyo on January 19, 1960. Doshisha University Faculty of Law. Kyoto University Graduate School of Law Master's Course Department
〇1986 Daiwa Securities Co., Ltd.
〇Entered Matsushita School of Government and Economics in 1990
〇1995 PRESTO Kyoto First General Branch Chief
〇Joined the Democratic Party in 1999
〇September 2005, Chair of the Environment Committee, Sansanin Temple
〇August 2007, Democratic Party of Japan, Shinryokufukai, Chairman of the Japan Political Council
〇September 2009, Deputy Minister of Foreign Affairs
〇June 2010, Deputy Chief Cabinet Secretary Uchia
〇September 2011, Chairman of the Foreign Affairs and Defense Committee of the Japan Institute of Foreign Affairs
〇September 2014, Chairman of the Democratic Party of Japan
〇September 2017, Chief of Sansan-in Great East Japan Earthquake Reconstruction Special Committee
〇In October 2017, Ritsume joined the Democratic Party of Japan, and became the chief of the Democratic Party of Japan.
〇October 2020, Chairperson of the Survey on National Life, Economy, and Local Areas, Japan Sansinin
〇August 2020, Vice-chairman of the Board of Visitors
〇Chairman of the Kyoto Prefecture Federation of Physically Disabled Persons' Organizations
〇Kyoto Prefecture Basketball Association Chairman
〇Co-author of “Nuclear Crisis Testimony from the Prime Minister’s Residence” and “What is Hidden in the Age of Fake”
(Appointed on December 18, 2020)