After a palace change, she was reduced from a powerful minister to an emperor's beloved concubine. Is this a reward or a more delicate prison? After three years of pretending, she thought she had performed all her affectionate roles and had accumulated enough capital to travel far away. At the end of the song, she jumped into the game and escaped, thinking that she would be a stranger in the world from now on. Three years later, in the misty and rainy place in the south of the Yangtze River, he left and returned. When the four eyes meet each other, is it settling scores after the fall, or is it deep-rooted love? When the secrets are revealed layer by layer, how should they settle the old dream that started with deception?