After waking up, Zheng Qingyue finds herself as the young heiress in a novel she had criticized the night before. According to the story, until she turns twenty-five, she is merely a guest in her own home, while Zhou Nian, the nanny's daughter, is the beloved darling doted on by her two bodyguard brothers. When someone slaps Zhou Nian and blames her, Zheng Qingyue doesn't cry out in protest. Instead, she orders all the lights turned on and points out that the handprint on her face, with the fingertips pointing upward, could only have been made by someone slapping themselves from below. She begins taking control: terminating the bodyguards' contracts, searching the nanny's belongings, and laying the account books bare at a shareholders' meeting. Everyone expects her to be thrown out of the family home. All she asks is: Who made the rules in this house?