In fact, the nine-tailed fox is a fictional animal in ancient China mythology. In real life, there is no Kyubi no Youko fox. There are a lot of descriptions about the nine-tailed fox in the ancient book Shan Hai Jing in the Spring and Autumn Period. The book also calls the nine-tailed fox a supernatural animal, which can bring many beautiful things to the world. Therefore, the nine-tailed fox became the auspicious representative of ancient China. In addition to the nine-tailed fox, people in ancient China also regarded the phoenix, dragon and peacock as auspicious things, which shows that the nine-tailed fox, who is the same family as the dragon and phoenix, actually has a very high status in people's minds.
However, after the Tang Dynasty, there suddenly appeared many legends about the demon charm of the nine-tailed fox, which is also the reason why the nine-tailed fox was demonized. In the Tang Dynasty, Wu Zetian took away the land of the Tang Dynasty, and later Yang Yuhuan provoked the Anshi rebellion. In the Tang Dynasty, some people thought that Wu Zetian and Yang Yuhuan were not ordinary women, but evil spirits of the nine-tailed fox, which harmed the world, and the sacred status of the nine-tailed fox plummeted. It is said that the worst rumor at that time was that Yang Yuhuan was a nine-tailed fox demon. Others think that Yang Yuhuan didn't die at Maweipo, but showed his true colors and fled to Japan. But rumors are rumors after all and cannot be regarded as official history.
Bai Juyi, a poet in the Tang Dynasty, wrote an ancient buried fox for the nine-tailed fox. In this poem, Bai Juyi praised Si and da ji as the nine-tailed fox demon that brought disaster to the country and people. Bai Juyi's poem also deepened the understanding of the nine-tailed fox in the Tang Dynasty to a certain extent. Demon? Impression, so since then, the nine-tailed fox has become a representative of evil.