Jiang Hua urgently needs money to save her mother and crosses paths with Huo Zhitian, who has been drugged. They form a bond. Later, Jiang Hua discovers Huo Zhitian is the CEO of her company. Huo Zhitian understands her motives and notices she resembles a little sister he had in an orphanage, leading him to take special care of her. Jiang Hua treats Huo Zhitian's grandmother, who grows fond of her, and Huo Zhitian proposes a marriage contract, promising to cover her mother's medical expenses. However, a female antagonist impersonates Huo Zhitian's orphanage sister, causing harm to Jiang Hua and even kidnapping her. Huo Zhitian uncovers the truth, sends the imposter to prison, and when Jiang Hua is injured and unconscious, she calls Huo Zhitian's childhood nickname. He realizes Jiang Hua is the sister he's been searching for all along, and they reunite, promising to stay together.