Becoming the Strongest National Master Starts from Turning Back

Yu Tianshu binds the harem return system to travel through ancient times. You must dominate the harem and become the emperor's favorite person before you can be resurrected and return to the original world. Yu Tianshu thought for a moment: The person on the top of his heart? I understand. She turned around and went back to the past, mailing future events to the emperor using crows. In the Chu Dynasty, she transformed into a holy national preceptor who could predict the future, and lived a prosperous life. The Minister of Rites asked: When will it rain? Yu Tianshu casually replied: Five days. If it doesn't rain within five days, then go back to ten days, and you can always figure out when it will rain. The general asked: When will there be chaos at the border? Yu Tianshu pretended to count with his fingers and replied: After the autumn harvest. If there is chaos at the border after the autumn harvest, then go back and the Chu soldiers will be ready to go and catch the enemy by surprise. In the end, all the people in Chu knew that the wise and scheming Yu Guoshi, the supreme prince, would interfere with her in everything. Yu Tianshu smiled at the system: "Isn't this the person who cares about you?" One day, the old emperor came and asked: Which of my sons can achieve great success? Yu Tianshu pointed at it: Sixth Prince Chu Mingjun. Yu Tianshu thought about who it was, she could turn back. Who would have thought that this instruction would come true, and Chu Mingjun would become an unprecedented wise king. ---------- The sixth prince, Chu Mingjun, knew a secret. The supreme master could control the flow of time, but he seemed to be excluded from the flow of time. At first, he was very interested in the abilities of the Imperial Master. After gradually observing and spying on him, he became interested in the Imperial Master. The imperial master predicted that he would achieve great things, and everyone in the court had different expressions. Chu Mingjun looked at the Imperial Preceptor who was like a bright moon, with a dark look in his eyes. He would use any means necessary to fulfill the Imperial Preceptor's prophecy and become the last stone of immortality on the path of the Imperial Preceptor's prophecy. [The female protagonist who only wants to pursue a career and make the country better VS the male protagonist who is a love-minded man who speaks the truth and is committed to becoming a stepping stone on the road to immortality] Purpose: If I could do it again, the world would be full of love