Su Yan's lectures are always packed, with Tang Xiaoxiao, whose eyes shine brighter than anyone else's, always sitting in the front row. For three whole years, she was like a little sun, driving away the chill around him. Yet when she confessed her feelings, he only replied coolly, "Your studies come first." She vanished without a trace, and only then did he realize he had grown addicted to her presence. His heart was pounding deafeningly. But when he finally approached her, he saw a sunny senior standing at her side, and slowly withdrew his outstretched hand. Three years later, at an academic collaboration conference, she sat across from him as the company representative. The light from those days was gone from her eyes, replaced by polite distance. "Professor Su, I look forward to working with you." That night, he lost control and stopped her. "Xiaoxiao, I've been waiting for you for three years." She smiled faintly and tilted her ring finger, showing off a diamond ring. "Professor Su, were you waiting for me right where you stood? I'm afraid my research project was completed a long time ago."