The Real Rich Man Is a Top Student, the Fake Rich Man Will Hand It over to the Country

[True and fake daughter + grudges of wealthy families + academic master + system + surrender to the country + counter-routine] When the protagonist who is familiar with the routines travels through time and becomes a fake daughter. Meet the real rich scholar who is sober in the world. It turns out that my tenderness is my greatest trait. Just a wealthy family, what does it count? I cannot waste this rebirth. I want to become the leader of the entire civilization.