Angels are beautiful messengers of God, with pearl-colored hair and eyes. Those blessed by angels are called "Saints" and have the power to heal people. Despite being born into a distinguished family that has produced many saints, Niella does not possess holy powers. Because of this, her family has called her "useless" and hated her for even being alive. However, no matter how hellish her days, Niella continues to offer devout prayers to God. One day, her parents, hoping to give Niella a child with holy powers, unilaterally decide on a husband for her... She thought no one would ever need her, despised as useless... This is the story of a fateful love between a devout saint and an angel, connected by fragrance.