When police officer Zhang Zhengyan reunites with Lin Xi, a teacher, while on a mission, the wheels of fate quietly begin to turn. Under pressure from their families to marry, the two jokingly embark on a marriage of convenience.
At first, their newlywed life is full of friction over different schedules and everyday matters. But when a student in Lin Xi's class gets caught up in a case, Zhang Zhengyan uses his expertise in criminal investigation to turn the tide, and the two begin to fall for each other. Romantic dinners, watching over her at school, and bouts of jealousy all bring their love to a slow boil.
But their peaceful life is shattered by a string of kidnappings across the city. Zhang Zhengyan throws himself into the investigation, while Lin Xi becomes a target of the kidnappers. In a life-or-death rescue, they confront their fears, and their love becomes unbreakable under the trial. After she's rescued, they heal together, and with their loved ones as witnesses, they hold a grand wedding, turning a love that has weathered the years into the most beautiful poem of their lives.
