Sun Na was humiliated by her ex-husband Gu Beichen and her sister Su Waner, and she left the house with a debt of five million yuan. In desperation, she activated her "emotional balance system" - the more negative emotions others felt about her, the more money she had in her account. With the help of the system, she opened a restaurant, showed off her cooking skills, grabbed customers, and gradually transformed from a downtrodden substitute wife into a catering queen. On the road to revenge, she uncovered the truth about her mother's twenty-year imprisonment, and met Xu Haoxuan, who truly loved her. In the end, Sun Na made everyone who had hurt her pay the price and lived the way she wanted.