After Passing Through the Book, I Got Together with My Mortal Enemy.

The genius girl Jiang Linran stayed up late to read a novel, but when she woke up, she became the person in the book. Jiang Linran, who had secured the position of prime minister of a country as a daughter, risked beheading and deceived everyone. When one person suddenly turns into another person, it is inevitable that something will be revealed. Fortunately, she has the standard time travel equipment - a golden finger, which can easily see through other people's inner emotions, walk on the edge of danger, play around in rivers, lakes and temples, and do not forget to use Machiavellian tactics to investigate cases. Unexpectedly, her golden finger was ineffective against her mortal enemy. After several confrontations, rationality and impulsiveness, gentleness and violence, restraint and wantonness, she gradually lost her way and indulged...