Is the mainstream of ancient Japan China or Japanese?

There were no characters in Japan before Chinese characters were introduced. According to official records, Chinese characters were introduced into Japan during the period of Emperor Shen Ying (China's Three Kingdoms), that is, in 248, Wang Ren crossed Japan from Baekje and presented ten volumes of The Analects of Confucius and one volume of thousands of words, which was the beginning of the introduction of China Sinology into Japan.

After Chinese characters were introduced into Japan, they not only became public servants to record historical facts, but also became the only official writing in Japan at that time.

Since the beginning of the 9th century, due to the establishment of the so-called "national culture" in Japan, most books are described in Japanese characters (pseudonyms). However, the status of Chinese characters in Japan was the official writing used by public officials until the early Meiji period.