The female protagonist, Lu Youyan, met the aloof and arrogant painting prodigy, Gu Yebai, by chance through a game of "truth or dare." At that time, Gu Yebai was suppressing his artistic talents to retaliate against his father's family, refusing to showcase his gifts. Coincidentally, Lu Youyan, influenced by her mother’s artistic background, had a deep understanding and appreciation for art, and couldn't stand seeing Gu Yebai's youthful talent wasted due to his negative attitude. Determined, she set out to change him, sparking a romance between the two. At first glance, Lu Youyan may seem like a "Mary Sue," intruding into Gu Yebai's life and trying to alter his approach. Why should a seemingly ordinary girl be deeply loved by the male lead? However, as her background unfolds, her motivations become clear. Lu Youyan’s mother, Chi Zheng, was an exceptionally talented painter who created many stunning works of art. Tragically, she passed away suddenly at the peak of her artistic career, leaving the art world in shock and regret. Growing up with her mother and suffering from the same hereditary heart condition, Lu Youyan deeply understood the value of living healthily and having ample time to pursue one's dreams and ambitions. Thus, she couldn't bear to see Gu Yebai squander his talent and refused to let go easily. The life she wanted for herself was something Gu Yebai could also achieve. Unexpectedly, this determination marked the beginning of a lifelong bond and separation between them. As Lu Youyan’s condition worsened, she had no choice but to stage a "change of heart" with her cousin in front of Gu Yebai, choosing to end their love painfully but quickly. Their love story unfolded amidst the astonishment of those around them and ended just as unexpectedly. Years passed after their separation.

Louis, after years of studying abroad, returns to City J and unexpectedly enrolls in a foreign trade training class where he first meets Susan, who is both a staff member and a participant. Although they don't talk much during the class, Susan's intelligence and independence leave a deep impression on Louis. After the class ends, they lose touch as they dive back into their busy lives. Two years later, Susan unexpectedly calls Louis, asking for his help to pretend to be her boyfriend at a friend's wedding due to some special circumstances. Louis agrees, and this reunion rekindles old memories and sparks new expectations. They meet for coffee to discuss the wedding details, and the conversation flows, reviving their past connection. At the wedding, Louis and Susan play their roles convincingly, drawing compliments from guests. The celebration continues at a karaoke bar, where Louis sings Susan's favorite song, deepening their emotional connection. This night marks the beginning of their romantic relationship. However, their relationship faces challenges when Louis suffers a severe knee injury in a car accident. Susan shows her dedication by caring for him, strengthening their bond. Despite their deep love, the strain of a long-distance relationship eventually leads to their breakup. After two years apart, Louis engages in fleeting romances but never forgets Susan. When they reunite by chance, old feelings resurface, and they decide to give their love another chance. But life throws another curveball when Louis is sent to work in City N for a year, straining their relationship again. Upon returning to City J, Louis learns Susan has given birth to his child, leading to their decision to remarry. They settle down together, but their happiness is tested when Louis's new job brings him into close, professional contact with Vivian, his boss's secretary. Susan, sensing a threat, insists Louis leave his job, which he does to save their marriage. Despite their efforts, accumulated tensions lead to another separation. Years pass, and after much introspection and occasional encounters, Louis and Susan reconcile. With their children as witnesses, they remarry, vowing to cherish each other more. The story concludes with Louis and Susan rebuilding their family life, focusing on raising their children, participating in family activities, and finding harmony in their second chance at love.