Retrieved February 11, 2024. "The Kaisei Academy Official English Homepage | 開成中学校・高等学校公式サイト" (in Japanese). Archived from the original on December 8, 2023. Retrieved...

attended Seikei Elementary School and Seikei Junior and Senior High School (成蹊中学校・高等学校). He studied public administration and graduated with a bachelor's degree...