When Song Yixin was calculating the trajectory map of Mars 5 at the national base, he was accidentally pushed by a colleague to the 1960s and turned into Miaomiao, the only one of the Song family who had just turned five years old. Not only that, he was also bound to a plane trading system. He thought: Should he continue on the path of scientific research? Or become a profiteer? He scratched his poor hair, thought for a while, and decided to sleep first.