Reborn and Low-Key Is King

I was reborn as a 12-year-old self with the experience of my previous life. I calculated on my fingers that it was less than two years since I became a big star in the stock market in 2007, but I was still a child. No, I must not miss this once-in-a-lifetime opportunity like this. I want to make money! Make money! I had too many regrets in my previous life, and I want to make up for them all this time.