A girl wakes up as the spoiled youngest daughter in a noble family, but later realizes she is actually the cruel older sister’s enemy in a revenge story. Afraid of her tragic future, she tries to be kind and avoid trouble. However, her cold older sister, a secretive prince, and the people around her start treating her differently, making her escape plan much harder.

Even though her sister seems to hate her at first, small moments show she may secretly care. As the misunderstandings slowly change, the girl tries to protect her sister while searching for a way to survive and find happiness.