As the number one piano player in Jiangnan, Yu Zhiwan entered the palace not to compete with others, but to take revenge. Three years ago, her family was ruined by a glass of poisonous wine given by the emperor. With an unfamiliar face and a deep hatred, she worked every step of the way, just to find out in the palace the mastermind behind Zhongliang's plot. This palace election called "Chaofeng" was just the first vote she submitted. She thought she was perfectly disguised until she met Zhao Jue, the king of An, who was famous for being aloof from political affairs and frail. When they first met, he was leaning by the waterside pavilion and casually commented on her music: "She has a lot of craftsmanship but not enough character." When they met again, he was in an abandoned piano room late at night, accurately using three stones to highlight the tone of military killing hidden in her music. He smiled at her, with an abyss in his eyes that could penetrate everything: "The girl's piano is too murderous." Yu Zhiwan's fingertips were condensed on the strings, and his back was soaked in cold sweat. From then on, this revenge was no longer her one-man show. During the day, he was the prince who was picky about her in every possible way, making venomous comments and seemed to be her biggest enemy. At night, he turned into the most tacit ally, paving the way for her and guiding her. "The Prince of the East Palace loves "Guangling San", play it to him, and he will help you get rid of the Minister of Household Affairs." "For the Queen's birthday banquet, the song "Eighteen Beats of Hujia" is enough to show off the commander of the imperial army." "Don't be afraid," he held her hand that was cold and trembling from excessive piano practice. "The sound of your piano is a sharp blade pointing at the enemy, and I am your scabbard. No matter how dangerous the road ahead is, I will protect you."