Lin Xiaoxing, a 26-year-old newcomer to the workplace, unexpectedly became his superior after joining the industry-leading Qiyuan Design Company, a technical director Chen Yan who was 20 years older than him. At work, Chen Yan's calm professionalism and hidden tenderness moved Xiaoxing. Xiaoxing's fresh and passionate heart also loosened Chen Yan's dusty heart. The two broke through the double boundaries of age and workplace and started an underground romance.
This relationship has always been shrouded in the shadow of "exposure is a crisis" - Chen Yan was under pressure from public opinion due to his previous age difference marriage, while Hyosung had to face doubts from colleagues, opposition from his family, and rumors of "relying on relationships" in the workplace. As the company's major projects progress, the two have differences over their work philosophies, secrets from the past are gradually exposed, and their underground love faces all-round tests. In the end, they made a choice between "hiding" and "honest", not only preserving their love, but also finding their respective positions in the workplace and life.