In October of the seventh year of Xuanhe of the Northern Song Dynasty, Jin Guobing divided into two groups and invaded the Song Dynasty aggressively. The panicked Song Huizong hurriedly dispatched Shaanxi transit judge Li Ye to bring thirty thousand taels of gold as an envoy to Jin Guo for peace.After Li Ye arrived in the Golden State, he was deeply shocked when he saw the sturdy Jurchen for the first time, "People are like tigers, horses are like dragons, uphills like apes, and down waters are like sages. Their power is like Mount Tai, and China is like a tired egg!" This is a female. The impression left by a real person on Li Ye is full of surprise, fear, and despair. After returning to China, he reported this impression to Song Huizong but was accused by the ruling and opposition parties of exaggerating the power of the gold man, raising the aspirations of others, and destroying his prestige.The ancient Japanese book "Xiaoyouji" records that in the third year of Kuanren, on March 28, 1019, more than 3,000 pirates suddenly appeared on Tsushima Island on 50 large ships, and they carried large swords on the island’s residents. The looting also burned the Tsushima silver mine.The Jurchens are so fierce and inseparable from their living environment. They have lived in the deep cold mountains and forests of Northeast Asia for generations and made a living by fishing and hunting. In ancient times, Jurchens lived in areas not only harsh but also wild beasts. They often met tigers, brown bears, and other large beasts on a narrow road. Without the extraordinary physique and courage, it would be impossible to compete with these powerful beasts, and the ethnic group would not be able to compete with them continue.