The Beginning Of My Life As A Billionaire

I grew up in a poor family. My foster mother worked tirelessly as a maid to support me. In order to climb out of poverty, I studied hard and got into a prestigious university. But not long after, my foster mother fell seriously ill and quickly racked up two hundred thousand dollars in medical expenses. I tried to borrow money, but instead, I only received humiliation and abuse. I hated my life. Why was I so incompetent? When I was at my most desperate point, I suddenly received a text message from the bank. "Mr. Larson, you’ve received $1,000,000,000 in your account." I was dumbfounded. A billion dollars? It had to be a scam! But then suddenly, a strange man called me. "Mathews, do you want to know how your biological mother died? Spend a billion dollars within the month, and I'll tell you everything!"