Lu Chengyu, president of Xingyu Technology, is known in the industry as a cold, decisive, and ruthless workaholic. Influenced by his family background, he buries his feelings deep and demands nothing less than perfection from his work. Su Wan, an elite secretary who graduated from a prestigious university, has become the one “right answer” perfectly suited to Lu Chengyu's needs, thanks to her keen eye for detail and efficient, capable work. She remembers that he takes his coffee without sugar and avoids cilantro, can anticipate the rhythm of his meetings, and can even read his mood from the sound of his typing.
As they spend day after day together at work, Su Wan is moved by Lu Chengyu's intense focus while handling one crisis after another, and quietly begins to fall for him. In turn, Lu Chengyu gradually lets down his guard in response to her thoughtful care. She reminds him to eat when he works nonstop, searches tirelessly for a keepsake from his mother when it goes missing, and remotely solves problems when he is stranded out of town. From rushing him to the hospital when she faints after getting soaked in the rain, to shielding her from drinks at a team gathering, to receiving a birthday gift he passes off as a “work reward,” the tenderness hidden in the details of their work steadily brings them closer.
But the pressure of a business marriage and the gulf between their social status put their budding relationship to the test. Su Wan chooses to flee out of insecurity, but after she leaves, Lu Chengyu finally realizes that the secretary who had kept his life and work so perfectly in order has become someone he cannot bear to lose. When the “stone-faced CEO” drops his defenses and faces the feelings stirring in his heart, can the two of them break down the barriers between work and romance, and go from a well-matched team to lovers who stand by each other? This is a love story hidden behind an office desk.