Under the Wutong Road of Jiangnan University, Lin Mo from the Computer Department and Su Wan from the Chinese Department met for the first time. From the chance encounter in the library, the intersection of elective courses, to sharing a table in the cafeteria, and walking together on rainy nights, they got closer step by step during their college years. They experienced sweet daily life, quarrels and running-in, and also went through the confusion of graduation and longing for a long distance together, and finally went from campus to wedding, starting a family and giving birth to a new life. This is a story about growth, companionship and love, telling the long-lasting warmth and perseverance in the years from youth to maturity.