Seeking a time-travel novel

He remembered that the plot was about a soldier in the army doing a drill or something. He was driving a solar-powered car into the forest and accidentally traveled to ancient times with a gun. Later on, that gun even made him a famous hidden weapon user in the martial arts world…
Then, I think he opened a factory to make things. He also made tea leaves and invented all kinds of weapons. I forgot
Can anyone help me find it?
At first, I thought I was going back to the Ming Dynasty to be a prince, but I realized that it wasn't a problem.
Not this. That book was very old. It should be a book from about five years ago. I read it in high school, and it's a long, long book. I remember that I never finished reading it, and it was to travel to ancient times, ancient times, not another world.
There was a story about a flood and the people along the river fell sick. It was caused by drinking the water from the river. He taught them to boil the water and then took some medicine from his car for the people to eat. Therefore, he even obtained the title of 'Miracle Doctor' in the martial world.

Answer 1

You can read " Return to the Ming Dynasty as a Prince ". This is a time-travel novel that tells the story of an ordinary college student who accidentally transmigrated to the Ming Dynasty and became the son of the emperor. Through hard work and intelligence, he became a prince. The plot of the novel was full of ups and downs, and the characters were vivid and exciting. It was deeply loved by readers.