Li Chengqian of the Tang Dynasty: Please say long live His Majesty

In the 14th year of Zhenguan, Crown Prince Li Chengqian fell off his horse and fell into a limp after undergoing treatment.
Later, his mind and character became distorted, and he even became stupid and demented.
In the 17th year of Zhenguan, Crown Prince Li Chengqian attempted treason but failed. The plot was exposed and he was demoted to a commoner and exiled to Qianzhou.
He died in Qianzhou in the 18th year of Zhenguan.
……
In the darkness, Li Chengqian slowly opened his eyes.
A soul from more than a thousand years in the future that failed to take over another person's body not only brought him back to the time when he fell from power in the 14th year of Zhenguan, but also brought him memories and knowledge from more than a thousand years in the future.
This time, he not only wants to heal his leg injury, but also wants to take back everything that originally belonged to him.
……
"Cheng Qian, what are you doing?"
"Your Majesty, please say long live!"
"Someone, escort the Emperor to the Wude Hall!"
Wude was the only reign title of Emperor Gaozu Li Yuan.

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