After Passing Through the Book, She Became the Regent's Favorite

[1V1] Modern girl Lin Wanwan, because of an accident, was transformed into a cannon fodder female supporting role. I am a modern medical student, so I can make a group of ancients figure it out. What female counterpart? I want to counterattack and become the protagonist, with a golden finger bonus, to defeat the scumbag and the heartless man. After meeting the ruthless regent by chance, the king did not go to court early in the morning, but surrounded the princess every day.