When they meet in second grade, Tiffany Hwang falls instantly in love with her neighbor, Kim Taeyeon. Taeyeon, however, does not feel the spark. From that day forward, he tries hard to keep brash and unpredictable Tiffany at bay. After six years, she begins to feel that she was wrong about him being the love of her life. Unfortunately, that is just about the time that Taeyeon begins to think he was wrong about Tiffany, too.