Grandpa Invested in the Beginning, and the First Return Was One Billion

Zhang Tao got a system that could invest in his deceased grandfather. Using current items and investing time in the past, the return rate exceeded 200,000%. "Invest 30,000 yuan, return one billion yuan, return rate 283919.40%" "Invest in BMW and get 8.2% Of Ferrari's shares in return, plus the world's only ceramic Ferrari 599GTB." "Invest in a small building in the countryside and get a return of 20 billion in a large shopping mall, Qianlong City." "..." Dingdong: The latest investment return has been received. The return is ten engagement contracts. Please check. Zhang Tao: "????" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.