Mayuko Onuki is an assistant professor at the Graduate School of Asia-Pacific Studies, Waseda University, Japan. She earned a Ph.D. in Social Psychology from the University of Southern California where she studied effective and cognitive processes underlying intergroup conflicts and cooperation. From 2015 to 2020, she was a research fellow at the JICA Ogata Research Institute, undertaking various applied psychological research on international volunteering, focusing on Japan Overseas Cooperation Volunteers, as well as social integration in post-conflict societies, using her expertise in quantitative methods.