The Prince Wants to Kiss Her, but the Princess Just Wants to Have a Career

I am a military doctor of the 21st century special operations force. An explosion caused me to travel through time and become the second daughter of a concubine of the prime minister's family in ancient times. She was plotted by my aunt and forced to live in the countryside for ten years. I was finally brought back to the capital. However, my father did not care for her, my aunt did not love her, and my sisters were more vicious than the other. After traveling through time, I must not be as cowardly as the original owner. If you say I don't know how to heal, I will open medical clinics all over the world. If you say I'm too weak, I'll whip you so hard that you'll find teeth all over the floor. If you say I have no money, then I will create my own business empire. The woman who had been bullied since childhood suddenly became the favorite of the Jokhang Dynasty. Originally I just wanted to focus on my career. Can anyone tell me what this marriage is about?