In the third year of Shaoxing (1133), Yue Fei was in charge of military affairs in Jiangxi and Hubei, and Zhao Gou assigned Niu Gao's department to Yue Fei's command, and Niu Gao joined Yue's army.

In fact, before Niu Gao joined the Yue family's army, the two had many contacts and had a deep friendship. Niu Gao was older than Yue Fei and had outstanding military exploits, so he was quite respected by Yue Fei. Since then, Niu Gao has been serving as the deputy commander of the Yue family's army, and Yue Niu and Yue Niu fought side by side, writing a singing and crying history of resistance to Jin.

In "The Complete Biography of Yue", Niu Gao is written as the reincarnation of the black tiger and becomes a brother with Yue Fei and others. Therefore, in my book, it is also based on Niu Gao in "The Complete Biography of Yue", so there are some discrepancies with history, don't blame you.