Beacon Fires Along the Long River

He was the most renowned stock trader of the 21st century, but one careless mistake sent him transmigrating through time.

In the 27th year of the Dafeng era of the Qiongan Kingdom, Grand General Yang Jinzhong had twins. One was the legitimate son of his principal wife, while the other was an illegitimate son born to the woman he loved outside the household. This illegitimate son could read at three and write poetry at five. Clever, quick-witted, and exceptional, he never forgot a martial arts technique or internal cultivation method he learned, and could infer three things from one. A heaven-sent prodigy, if ever there was one.

So, next the protagonist turns the world upside down and directs the course of history?

No, you've got it wrong. The protagonist is the unlucky legitimate son.

The story is pretty good. I'll do my best to finish it.

Theme: Fighting back and becoming self-reliant