Ms. TOMONOH Rio'S PHOTOGRAPH OF THE FACE

Ms. TOMONOH Rio

(Real Name: DOI Rio)

  • Liberal Democratic Party and Group of Independents
  • Elected 2022, Proportional Representation
  • Current Responsibilities in the House of Councillors
    （as of November 9,2026)
    Committee on Environment
    Committee on Budget (Director)
    Special Committee on Children, Childrearing and Youth Empowerment
    Research Committee on Natural Resources and Energy, Sustainable Society (Director)

Born:
 November 18, 1980, Tokyo
 
Education:
 2003 Tokyo Medical and Dental University, Faculty of
    Medicine, School of Health Care Sciences, Nursing
    Science
 2005 Tokyo Medical and Dental University, Graduate
    School of Health Care Sciences
 2008 Waseda University, Waseda Law School (Juris Doctor)
 
Career:
 2011 registered as a Lawyer
 2014 founded Doi Law Office
    Policy Secretary to a Member of the House of
    Representatives
 2020 Advisor, Japanese Nursing Association
 2022 elected to the Senate
 
(Major posts in the Government)
 2024 Parliamentary Vice-Minister of Cabinet Office
 2025 Parliamentary Vice-Minister of the Environment
    Parliamentary Vice-Minister of Cabinet Office
 
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)

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