Mr. KUMAGAI Hiroto
- The Constitutional Democratic Party of Japan and Social Democratic Party and the Independent
- Elected 2019 and 2025, Saitama Prefecture
- Current Responsibilities in the House of Councillors
（as of November 19,2025)
Committee on Education, Culture and Science (Chairman)
Special Committee on Political Reform
Deliberative Council on Political Ethics
Born:
March 23, 1962, Saitama Prefecture
Education:
Chuo University, Faculty of Commerce
Career:
joined LOTTERIA Co., Ltd. (a chain of fast-food restaurants)
Policy Secretary to a Member of the Diet
(House of Representatives and House of Councillors)
2007 Member, Saitama City Assembly (3 consecutive terms)
2019 elected to the House of Councillors
(as of May 11,2023)