Born:
 August 18, 1965, Tokyo
 
Education:
 1988 Chiba University, Faculty of Education
 1999 Chiba University, Graduate School of Education
 Koyasan University, Graduate School of Esoteric Buddhism
 
Career:
 2000 Child Care Person, YUHIGAOKA Nursery School
 2003 Director, Social Welfare Corporation
 2003 Member, House of Representatives (1 term)
 2007 first elected to the Senate
 2009 Member, House of Representatives (2 terms)
 2016 second elected to the Senate
 2022 third elected to the Senate
 
(Major posts in the Senate)
 2019 Chairperson, Special Committee on Reconstruction
    after the Great East Japan Earthquake
 2022 Chairperson, Committee on Oversight of
    Administration
 2023 Chairperson, Committee on Land and Transport
 
(Major posts in a political party)
 2016 Vice-President, The Liberal Party
    Secretary General, The Liberal Party in the Senate
 
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)