Sweet Yun Hwa becomes the unwitting stepsister of Yu Ra. Though Yun Hwa would love nothing more to be sisters with Yu Ra, the latter will have nothing of it, due to a sticky situation in which her long-term crush, Yun Jae, just happens to be Yun Hwa’s doting boyfriend. In a tragic instant, Yu Ra takes everything Yun Hwa ever had: a promising future, a loving boyfriend, and the comfort of her family.