Lin Xiao and Su Yu met in Class 1 (3) of Minghua Middle School. The introverted Lin Xiao gradually opened her heart under the influence of the sunny, handsome, enthusiastic and cheerful Su Yu. They became tablemates, studied and participated in activities together, and grew up together on the youthful campus. From the initial unfamiliarity to familiarity, from the warming of friendship to the budding of love, they experienced encouragement at sports games, mutual help in class and every bit of daily interaction in each other's company. Faced with academic pressure and ignorant emotions, how will they write their own youth love song?