This is an article without an outline because I don't know how to write an outline.
The story should go something like this:
Le Jinren was rescued by the prince Jiang Qing when he was a child, and he swore allegiance to the state of Yan to the death.
"We will be good friends forever."
He was loyal to the state of Yan and was very capable. He became a state advisor before he was twenty, and he was not replaced when the prince ascended the throne. But because of a misunderstanding, he became a prisoner in Bilun.
"Do you admit it or not?"
"I haven't done it, I don't admit it."
The misunderstanding grew bigger and bigger, and no one of them was willing to explain more. Le Jinren eventually committed suicide with hatred.
"I have been loyal to Yan Guo and have never had any selfish intentions, but you have treated me like this. If I could do it all over again, I would repay you a hundredfold."
He thought that was it, but unexpectedly he was reborn hundreds of years later.
Now that you are reborn, live your current life well, let go of your hatred, and start a new life.
By chance, Le Jinren became a mathematics teacher.
Here, he saw another familiar face that he would never forget—Jiang Qing.
Hahahahaha... Uh, it's just... Written indiscriminately, Abba, don't rant.
Intent: On the importance of language expression ability