A working class girl winds up at an exclusive prep school. Unassuming high school girl Jan Di stands up to -- and eventually falls for -- a spoiled rich kid who belongs to the school's most powerful clique.
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% 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.