A man of the martial world, sometimes a guest at court. Drunk, he lies on the battlefield reading the Daoist scriptures, then dances beneath the open sky with sword in hand. He speaks of lofty ambitions and romance, predicts fortune and disaster with a pinch of his fingers, and when life’s fleeting nature comes up, he angrily points at Heaven and Earth and declares them wrong!
The Tang Dynasty, an age that gave rise to countless remarkable figures. One prince is mentioned in only a few words in the history books. He is Li Kuan, son of Emperor Taizong. A man of the martial world, he gets dragged into court politics. Can he escape?
Keep reading. This book mainly depicts the early Tang Dynasty, and the later descriptions of war are very detailed. It also shows how modern people can abnormally integrate themselves into ancient times. It shows that being prescient does not necessarily mean you will be invincible. It has the characteristics of a "feel-good" novel, but it is not necessarily a "feel-good" novel.
It would be even better if you added some divine skills, spatial manipulation, or gunpowder.