Three Kingdoms: at the Beginning, Cao Cao Worshiped Me as His Eldest Brother

The protagonist travels through the late Eastern Han Dynasty, saves Cao Cao at the beginning, and becomes Cao Cao's sworn brother. Parallel time and space will change history, and a new Three Kingdoms struggle for hegemony is about to take place. Lu Bu who was loyal to the Han Dynasty, Er Yuan who was deeply affectionate as a brother, Liu Bei who was ungrateful, Sun Quan who rebelled and killed his brother, Liu Biao who was timid and cowardly, Ma Teng who entered the Central Plains, Which force did Zhuge Liang, Sima Yi, Pang Tong and others join? In the crusade against Dong Zhuo, how were the battles of Guandu, Chibi, Hanzhong, and Yiling staged? Who is the protagonist in stories such as passing five levels and slaying six generals, borrowing arrows from a boat, and planning an empty city? Cao Cao: "My eldest brother is invincible in bravery and unparalleled in resourcefulness." Xu Chu: "What I build are all magical weapons." Xun Yu: "One acre of land can produce a thousand kilograms of rice. Hua Tuo: "Please, I want to learn Chinese medicine from you. " This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.