At the age of eight, Wang Baoshui's father was swept away by a sudden landslide while collecting taxes in the countryside. After burying his father, Baoshui, who had no relatives left, was taken into the city by Doctor Liu Min, who was stationed in the countryside. Doctor Liu had a daughter named Xiaoya, who lost her father's love when her husband died in an explosion while serving in the army. Baoshui's arrival brought not only a childhood companion for Xiaoya but also joy to this suffering family. Time flew by, and in the blink of an eye, more than ten years passed. Baoshui and Xiaoya, who referred to each other as siblings, grew up under their mother's care. Baoshui inherited his father's wishes and became an outstanding tax official, while Xiaoya blossomed into a graceful young woman after graduating from university. Over the years, the deep bond that they shared had evolved into love in Xiaoya's heart. However, Xiaoya's unpredictable emotional changes were puzzling not only for Baoshui but also for their mother. When Baoshui entered the workforce, dedicating all his energy to giving back to society and repaying his mother's nurturing, an unexpected experience led him to adopt an abandoned baby. The baby, named Dou Dou, grew day by day under the love of their mother and Xiaoya. When Xiaoya hired a kindergarten teacher named Chen Cai to teach Dou Dou the erhu, she felt a complex mix of emotions towards Chen Cai, who had entered Baoshui's life. In truth, Baoshui loved Xiaoya but worried that Xiaoya, a university graduate, would not be interested in him, which held him back from expressing his feelings. It was only when Xiaoya decided to leave for Xining for love that their mother realized her daughter's true feelings. As a girl experiencing her first love, Chen Cai discerned Xiaoya's affection through her eyes and decisions. After Chen Cai quietly withdrew, citing preparations for marriage, Baoshui and Xiaoya's hearts finally came together in the courtyard where they had grown up together.