Lin Qinghe rescues a frightened Cheng Xiaoman on a rainy night, then signs a thirty-day companion care contract. With patience, she helps the child speak again and return to school, but gets caught up in a misunderstanding over a stolen jade bracelet due to an edited video. After the contract expires, she returns the keys and still chooses to help domestic workers facing unfair treatment. As the complete surveillance footage appears, the truth finally clears her name and exposes the company's unreasonable deductions. Lin Qinghe wins a new position with her ability, Cheng Ye openly expresses his feelings, and Xiaoman, after understanding her birth mother's love, actively writes her into the family column. The thirty-day encounter ultimately becomes a long-term companionship for a family.