Peasant Girl's Space: Take the Prince to Escape from Famine

She was a mercenary king who was fatally injured while fighting the enemy. When she opened her eyes, she was transported to the time of escape in ancient times. Food was scarce, resources were scarce, and he even gained a silly younger brother. But it doesn't matter, her parents are still there and her relatives are still there, let's see how she makes use of hundreds of billions of material space to make a fortune. "The other prince, cough, respect yourself." "Princess, if you don't marry me, I will ensure that you have a worry-free life." "Go away"