Amidst the ongoing hegemonic conflict between the United States and China, geopolitical crises are erupting worldwide. In Europe, there is war between Russia and Ukraine, while in the Middle East, conflict has erupted between Israel and Hamas. In Northeast Asia, tension is escalating over the Taiwan Strait, and on the Korean Peninsula, confrontation between South and North is intensifying. In this context, South Korea, China, and Japan are exploring ways to act and cooperate with each other to ensure economic stability.