Cardiothoracic surgery genius doctor Lin Xubai and resident trainee Cheng Shuang start a hidden marriage life without any emotional foundation, arranged by their elders. With his cold and aloof personality, he is often driven to laughter and tears by Cheng Shuang's quirky and eccentric nature, making his life vibrant as a result. Later, due to the appearance of a "love rival," Lin Xubai finally realizes his true feelings, expressing his overflowing jealousy under the influence of alcohol, little knowing that Cheng Shuang has long since grown to love him deeply through their day-to-day life together. When Cheng Shuang learns that Lin Xubai harbors an ideal for pediatrics but is shackled by his family's expectations and heavy burdens, she encourages him to bravely pursue the ideals in his heart. Ultimately, the two hand-in-hand grow together and head toward a sweet life.