Abstract: No relationship is more important to the future of Asia than the one between Japan and China. PM Abe’s visit to Beijing last month put the relationship back on a firmer footing. Yet diplomacy alone will not stabilize Sino-Japanese relations. Popular attitudes in both countries also matter, and will be shaped by the success or failure of leaders to manage the growing complexity of this relationship from food security to fisheries management to national defense and new solutions to China’s growing influence over the daily lives of Japanese. Across Asia too, Japan and China will need to coexist without impeding each other’s influence. Next year’s visit to Japan by President Xi offers ample opportunity for expanding the foundation of this latest round of diplomatic “fresh starts” in the Japan-China relationship. Uncertainty over the US role in Asia, however, has made this a more difficult task.