Riyon is a viscount's daughter who suddenly remembers her previous life at an unfriendly prince's birthday party. After remembering the painful experience of witnessing her former boyfriend's cheating and dying in a traffic accident, she decides that in this life she wants an ordinary, peaceful happiness. However, her father disappears, and her stepmother and two stepsisters force her to become their servant. Riyon realizes that she has somehow been reincarnated into a world resembling Cinderella—and if the story follows its original course, she may end up marrying the cold prince. She absolutely refuses to let that happen!