It has nothing to do with history. The author is uneducated and wrote blindly. Don't hold on to it.
When he woke up, he became Zhang Jiao in the late Eastern Han Dynasty.
He lived in a troubled time when the people were in dire straits and the court was corrupt. The plague was rampant and the people were miserable.
To save the common people, he rose up.
Little did they know that this journey was beset with dangers, including repression from the imperial court and hidden attacks from all forces.
In a difficult situation, how can he overcome numerous obstacles and achieve a counterattack?