Jan-di is an average high school girl whose parents operate a Laundromat. One day she delivers laundry to Shin-hwa high school, where the top 1{f2d211bca0acc44e576b3c80abb2963f23f293275d936cdc33332de63261f69d} of the wealthy children gets to go, and accidentally saves a student from a suicidal attempt. After this incident, she is scouted to this prestigious school as a swimming athlete.