| No. | Social Activity | Year |
|---|---|---|
| 1. | Steering committee member, International Coalition for Democratic Renewal | 2025.3 - |
| 2. | Steering Committee chair, East Asia Democracy Forum | 2024.10 - |
| 3. | Institute of Geoeconomics (IOG) Europe and America Group / LIO Project Committee Member | 2023.12 - 2025.12 |
| 4. | Commentator, Asahi Shimbun Comment Plus | 2023.3 - |
| 5. | Steering committee member, Indo-Pacific Platform for Universal Values | 2023 - |
| 6. | Steering committee member, Japan Fact-check Center | 2022.10 - |
| 7. | Program Group member, Forum 2000 | 2022 - |
| 8. | Program Council member, Forum 2000 | 2022 - 2024 |
| 9. | Expert Panel (Rondan) member, Asahi Shimbun | 2021.4 - 2023.3 |
| 10. | Regional Coordinator, Asia Democracy Research Network | 2020 - |
| 11. | Board member, Partnership for Democratic Governance | 2018.12 - 2025 |
| 12. | Steering Committee member, World Movement for Democracy | 2018.9 - |
| 13. | Steering Committee member, East Asia Democracy Forum | 2018.1 - 2024.10 |
| 14. | Secretary General, Rotary Fellows Tokyo | 2017.7 - 2018.6 |
| 15. | Managing Member, Japan Rotary Alumni Association | 2016.11 - 2018.6 |
| 16. | Managing member, Rotary Fellows Tokyo | 2004.2 - 2018.6 |