He earned his MA and PhD degrees from Waseda University, Graduate School of Social Sciences, Japan. He specializes in international relations in East Asia and peace studies. He was a staff of Secretariat of the House of Representatives in Japan, before joining Soka University. His primary publications include “A Study of Endogenous Governance and Transnational Actors in Northeast Asia” (2015) and “An Introduction and Reference for Asian Regional Integration” (co-authored, 2013). Latest publication is “Mekong Region and Changing Borders,” in The New International Relations of Sub-Regionalism: Asia and Europe (co-authored, Routledge, 2018).