On the flight to university at the start of the school year, I am unexpectedly approached by Shen Buyu, the campus beauty of Jing University, who asks for my WeChat in front of everyone. I initially think I've had a lucky romantic encounter, only to discover that she is the very woman I had a passionate encounter with that night in Italy. She knows my secret codename and even remembers the tiny mole on my body. As she pursues me across campus, she gradually falls deeply in love. Using her family's immense wealth, she protects me and helps rescue my family's company from its troubles. From an unexpected encounter to a fateful reunion, the aloof campus beauty transforms into an affectionate, clingy girlfriend. Despite the passage of time and the gap in our identities, we make a lifelong promise by the Italian seaside: together until death do us part.