in terms of geographical characteristics, China is a land power country, which is often relatively conservative in national strategy, while Japan is a typical sea power country, which is naturally expansionary and aggressive; From the geopolitical point of view, East Asia is so big that it can't hold two regional powers. Either one of China and Japan will completely become the servant of the other, or they will never live in peace.
However, if we consider Japan alone, it is nothing to worry about. The economy of this country is completely the puppet of American bankers. Bankers blew up Japan and even the world economy through the financial bubble, and then suddenly raised the loan threshold and interest rate, so they could easily exchange paper money like waste paper for real valuable real estate. Now every Japanese national owes more than 6 million yen. Once China no longer poses a threat to the United States, the United States can easily slaughter the whole of Japan like a pig, and this rule also applies to almost all American allies.
Therefore, from the Japanese point of view, our existence and strength are beneficial to them. Only a strong China can ensure that bankers are worried and will not touch them for the time being.
China and Japan really can't turn their enemies into friends, but we can't target Japan for the time being, because American bankers are the real masters of Japan, and China is now fighting against financial tycoons hidden under the surface of the world, who are the kings of the capital world, and we are one of the few countries that are not controlled by them.