Bai Yixuan takes her twin sister's place in a marriage into a wealthy family, acting outwardly as a gentle and refined young lady from a prestigious household, but inwardly she is a "big foodie girl" who loves food, freedom, and her husband Cheng Yan. Cheng Yan accidentally gains the ability to hear her inner voice, and watching her bold thoughts hidden beneath her dignified exterior, he gradually falls in love and is captivated. Bai Yixuan originally planned to take the money and leave when the contract expired, but developed genuine feelings during their time together. Cheng Yan spares no expense to pamper his wife, and upon learning the secret of the substituted marriage, he feels deep sympathy for her past. A green tea schemer plots to expose the truth, but Bai Yixuan fights back brilliantly with a stunning piano performance, while Cheng Yan has already seen through everything, quietly waiting for her to drop her disguise and be her true self.