Was the main strategist in the Three Kingdoms novels Jia Xu?

I recommend the Poison Scholar of the Three Kingdoms. This historical novel told the story of the "Poison Warrior" Jia Xu. He first defected to Duan Wei and then to Zhang Xiu. He abandoned his wife and son, and then came to Huayin City. Out of self-danger, he joined the army in Xiliang. Faced with the imminent move of the capital to Xuchang, Jia Mu decided to pull Jia Xu along and fight against Cao Cao! This is a novel full of twists and turns and thrills. I believe you will like it. I hope you like this fairy's recommendation. Muah ~😗