Reborn with the System, I Understand Yidian Is Reasonable, Right?

[Urban daily life + single female protagonist, the system is incidental, I will not focus on it] Xiao Nianchuan was reborn, and he also brought the alien planet lying flat system with him. There is no pretentiousness here, and there is no fooling around with tens of billions or hundreds of billions at the beginning. His original intention was simple to the extreme: a wife and children, a house, a car and savings! Then what? What then? No then! Just lie flat! He is the capital behind the scenes, he is also a martial artist, a medical sage, a god of cooking... "Dad, you know so much, why don't people know about it!" "Baby, you are still young. When you grow up, you will know that sometimes too much is not necessarily a good thing!"