Ten years have passed, and he thought he'd forgotten about his first love. One day, he comes across his first love. Kang Hu-young is tall, handsome, and intelligent, and has lived a carefree life. When he came back to Korea from the US after ten years, he coincidentally ran into his first love, Lee Hong-ju. It brought back the memory from the past, making his heart race again... But unlike Hu-young, Lee Hong-ju is living an ordinary life. She believes a romantic relationship is a luxury and love is a waste of energy. She tries to stay away from him, but somehow, her heart starts to flutter as well. Is it just a serendipitous encounter? Or is it fate?