He Xiaochuan brings 300 jin of pickled cabbage made by his mother to his new school and unexpectedly wins the hearts of his classmates. Facing challenges with ingredient supplies and running a campus business, he remains calm, preserves his family's traditional craft, and receives sincere support from his roommates. Through communication and proper channels, they resolve their problems and bring traditional delicacies to the school cafeteria. As He Xiaochuan grows through his studies, friendships, and responsibilities, he learns the importance of honesty, cooperation, cherishing family ties, understanding others, and taking initiative.