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Zhang Tianyu, the son of a prince in his previous life, traveled back to the Spring and Autumn Period during an archaeological adventure and became an incompetent and helpless old man. He did not know what the people knew, so he was tortured. Hong Xin, who was in a low position, became Party A, and Zhengqing, who was once in a very high position, became Party B. Everything that is intertwined may lead to a society with a new identity system. And they still don't understand how big of a disturbance this will cause...