Born:
 November 28, 1967, Tokyo
 
Education:
 1990 Aoyama Gakuin University, Faculty of Law
 1995-97 studied Chinese language, culture,
      politics and economy at Beijing University
 
Career:
 debuted in Show Business while attending university
 Personality, Reporter, and Newscaster on TV programs
 2004 first elected to the Senate
 2010 second elected to the Senate
 2016 third elected to the Senate
 2022 fourth elected to the Senate
 2025 fifth elected to the Senate
 
(Major posts in the Senate)
 2013 Chairperson, Special Committee on Reconstruction
    after the Great East Japan Earthquake
 2022 Chairperson, Committee on Land and Transport
 
(Major posts in the Government)
 2010 Minister of State for Government Revitalization
 2011 Minister in charge of Civil Service Reform
    Minister of State for Government Revitalization
    Minister of State for Consumer Affairs and
    Food Safety
    Special Advisor to the Prime Minister
    Minister of State for the New Public Commons
    Minister of State for Measures for Declining
    Birthrate and Gender Equality
 
(Major posts in political parties)
 2015 Deputy President, The Democratic Party of Japan
 2016 President, The Democratic Party
 2020 Deputy President, The Constitutional Democratic
    Party of Japan
 
Note: The Sangiin, which had been known as the House of Councillors, is called the Senate in English as of August 2026.

(as of October 26,2026)