There was once a girl whose lifelong aspiration was to swim, but even with all her natural talent, it still seemed impossible for her to win under any circumstances. Conversely, another girl who initially took up swimming out of boredom unexpectedly displayed great potential despite having not taken the sport seriously before. When fate brought them together, their relationship was like oil and water or the contemporary version of Mozart and Salieri. Nonetheless, this proved to be the perfect setting for a tale of burgeoning romance and youthful dreams.