In order to save her critically ill mother, Su Wan signed a three-year contract and became the "contract wife" of business tycoon Yan Hu. She thought this was just a deal where everyone got what they needed, but she didn't know that Yan Hu's heart had fallen for her since the first time he saw her collapse in the hospital.
Under the contract, he is a guardian who is cold and stern on the outside but tender on the inside: he secretly reduces his mother's medical expenses, blocks trouble for her at charity dinners, and fulfills her casual wishes in the sunflower field. But when the Lin family's childhood sweethearts provoked them, reporters who maliciously spread rumors, and business conspiracies that falsified evidence followed, the relationship that began with a contract began to go through ups and downs.
From the anxious wait outside the emergency room of the hospital, to turning the tide at the shareholders' meeting, to trusting each other amidst the forgery of documents, Su Wan gradually understood that Yanhu's protection was never sympathy, but deep love; Yanhu also became more and more certain that the girl who had made him feel distressed had long become an indispensable light in his life.
When the terms of the contract expired in love, and when all the conspiracies were shattered one by one, they finally took off all guard and replaced the label of "contracted couple" with the only commitment to each other for the rest of their lives - it turns out that the best love is never a perfect start, but a firm determination to choose each other after going through ups and downs.
