In the midsummer of 1970, Su Wan, who had just graduated from high school, entered the county cotton spinning factory and became a publicity officer in the factory office. Starting from a piece of material, a factory newspaper, and an operation manual, this rural girl used a pen to gain a firm foothold step by step in this world woven by the roar of machines. Lin Yanzhou, a taciturn technician, could not take his eyes away from her since the day Su Wan pointed out the mistake on the drawing. He cooked porridge, painted, and delivered watches, hiding his unspeakable thoughts in every silent action. In the 1970s, from youth to maturity, from strangers to acquaintances, two people who were not good at expressing themselves weaved a long-lasting love while getting along day after day.