You'll Come Home Late: Twenty Years of Lin's Agreement

On a rainy day in the third grade of elementary school, Lin Wan's watercolor pen rolled on the floor. When Lin Yu bent down to pick it up at the back table, a piece of blue paint was stained on the cuffs of his school uniform - this brief moment became the beginning of the two people's bond for the next twenty years. After Lin Yu transferred to another school, this memory was hidden in his diary. It was not until high school started six years later that he appeared at the door of his new class wearing a white shirt, surrounded by the noisy Zhao Yang, the ball-playing Zhou Lei, and the silent Chen Mo. The five of them formed an "iron group" who always shared snacks in the corridor and went home together after evening self-study. During the countdown to the senior year of high school, Lin Yu fended off gangsters for Lin Wan, and Lin Wan helped him fill in his notes, and their love grew without saying a word. Under the Ginkgo Road in college, Lin Yu confessed to her while clutching the maple leaf bookmark she gave her in high school, turning "Classmate Lin" into a lover. But growth was never easy: Lin Yu got an offer from a big factory outside of China when he graduated, and Lin Wan had to stay in his hometown to take care of his mother. His friends were also scattered in the reality of failed business ventures and lost contact abroad. The late-night calls across different places and the mutual support during the trough finally made Lin Yu give up his promotion and return home, and the separated friends also reunited and reunited. From watercolor pens to wedding rings, from youth to old age together, two people with the same surname spent twenty years fulfilling a promise of companionship, and the friendship between the five people became the warmest background in the years.