Empress Zhao Huiying was letting a palace maid dye her nails with nail polish. But when she heard that the Crown Prince was punished to copy books, her fingers suddenly twitched.

As a result, Zhao Huiying's fingers were painted red. The palace maid who was holding a piece of cotton cloth trembled and hurriedly knelt on the ground and apologized, "I am guilty. Please spare me, Your Majesty."

Zhao Huiying raised her fingers and saw the red color on them. A layer of ...