Before the Raid, I Empty My Scumbag Father's Estate and Settle Down in Retirement

[Space + Trading Shop + Stockpiling Supplies + reborn + Feel-Good Power Fantasy + Romance + Both Leads Are Chaste + Years of Disaster] She transmigrates into the body of a doomed legitimate daughter. Don’t panic, I have a space that can keep me alive! Drought everywhere? No problem. My space is full of grain, not to mention livestock breeding out of control. I’ll definitely survive! What? The national treasury is empty and the front lines are running out of provisions? Don’t worry. As long as you have enough silver, we can work something out! It’s no big deal! Don’t want to cook? No problem. We have a shop. Let’s buy a chef! What? The villainous prince is my fiancé? Since when? How come I didn’t know?!