China's foreign minister said Saturday that Japan's acceptance of its neighbor's rise and sincere attitude toward wartime history issues are a must for bilateral relations to further improve.

"The question boils down to one thing, that is, whether Japan will accept and welcome the renewed development and the re-emergence of China," Wang Yi told a political forum in Beijing.

"China's development has produced massive benefits for Japan. However, from the perspective of mentality, I don't think Japanese people are fully prepared for this," Wang said. "I believe this is the root cause of many of the issues between China and Japan right now."