How to Spend 10 Billion in the Dark Middle Ages?

[Buy, buy, buy➕noble daughter➕management➕infrastructure➕female➕upgrade stream➕shuangshuang] After the plane crash, Eve traveled through time and became the background heroine in the novel. Good news: I am a noble daughter. Bad news: Because of the high fever that persists, I am unconscious and will soon be given an enema by the doctor. As we all know, the Dark Middle Ages were terrible! Men are superior to women! People's living standards are low! Horrible medical condition! Poor sanitary conditions… "The Duchess of the Middle Ages" worn by Eve is a Mary Sue novel set in the dark Middle Ages. Fortunately, Eve became the heir to the earl and was bound to an "inhumane" krypton gold system. From perfume and jewelry, to high-yield crop seeds, to patented technology... Eve started the crazy buying, buying, buying + crazy earning, earning, earning mode. The other nobles were shocked when they saw her squandering. They were so jealous that they almost bled, and they followed her like crazy. In this regard, Eve said: Fortunately, I am dressed as a noble, no matter how much I enjoy it, I will not be beaten to death! · Many years later, when Eve Shelley's fame spread throughout the European continent. People found that this famous countess worked hard and was extremely intelligent. Not only does she spend a lot, but she also earns a lot. Her territory is prosperous and rich, the people's living standards are extremely high, and the quality of the army is extremely high (military), superior (virtuous), and abundant (abundant)! The bards spread her reputation, and she left a glorious mark in history...