During the Three Kingdoms period, the Han Dynasty existed in name only, and various princes scuffled, and Cao Cao held the emperor to make the princes.
During the Warring States Period in Japan, the Muromachi shogunate existed in name only, and various famous generals fought against each other, and Oda Shinichi became a vassal by shogunate generals.
In addition, the experiences of Cao Cao and Nobunaga Oda are very similar. Both of them started from scratch (Cao Cao was a eunuch, and Oda Nobuyuki was a small landlord), worked hard all the way, and eliminated a number of powerful enemies with fewer wins (Cao Cao destroyed Yuan Shao and Oda Nobuyuki destroyed Imagawa Yoshimoto), and finally achieved a hegemony.
However, the similarities between Zhao Yun and Sanada Yukimura were misinformed by later generations. Zhao Yun and Sanada Yukimura are nothing like in the history. Sanada Yukimura basically didn't go to the battlefield in the first half of his life.