01 Lately, Zhang Qinghe had been feeling seriously troubled—someone was following her. At the end of the Monday morning flag-raising ceremony, she kept glancing toward the senior class section. Her deskmate said a couple of things to her but got no response, and asked curiously, “What are you looking at?” She followed Zhang Qinghe’s gaze and suddenly exclaimed, “Oh! I know that guy! That’s Zai Ye, the senior who transferred here this semester!” Walking alone at the back of his class,…