For both China and Japan, focusing on their own development should be the primary task. This year marks the beginning of China"s 15th Five-Year Plan (2026-30) period, with major and important tasks for domestic reform, development and stability. Meanwhile, Japan is currently facing numerous internal challenges, with a weak economic foundation. The ratio of Japanese government debt to GDP has reached as high as 230 percent. During the Japanese House of Representatives election, Japanese Prime Minister Sanae Takaichi pledged a policy to suspend the consumption tax on food for two years. While designed to win voter support, this move would cut the Japanese government"s annual fiscal revenue by approximately 5 trillion yen. Against the backdrop of surging fiscal spending, such a policy will undoubtedly further inflate the country"s national debt. Market confidence in Japanese government bonds has already declined significantly. In January, the yield on 10-year Japanese government bonds rose to a 27-year high. Higher bond yields signal a sharp increase in Japan"s future debt-servicing costs. The huge hidden risks in its economy can no longer be ignored. Driven by domestic political needs, the government led by Takaichi has unwisely provoked neighboring countries, including China, on multiple occasions. If this trend continues, it will ultimately harm both Japan and others.