The Little Prodigy Physician

She transmigrates by accident, only to be taken away by a ruthless regent. As a doctor, all she was supposed to do was heal the sick and save lives. So why does she also have to deal with all those consorts? When she loses her heart, what will he do? When he needs to use her, he can actually bring himself to be ruthless. After years apart, when they meet again, can things still be the way they were? When she no longer cares, what will become of them?