Wu Boqiang, who was from a low-income family, traveled to Tokyo, Japan to pursue his studies. However, a number of issues developed as a result of the green mold on the ham he brought. The butler first said that the ham shouldn't have been hung on the wall and then chastised him for not hanging the ham in the toilet. Boqiang didn't earn the butler's respect until his friend Zichen paid him a visit and invited the butler to eat the ham. He still chose to moved out because he couldn't stand the racial prejudice and personal humiliation. The book reflects the great challenges and powerlessness of underprivileged students who are subject to economic oppression and lack access to an education.