Lililucia, the daughter of a marquis, scarred her sister's face when she was young, and as she continued to listen to her selfishness, she was made to be the most evil woman in the kingdom. When her sister got married, Lililucia decided to stop listening to her selfishness, but her sister suspected that the princess and her husband were having an affair, and she was cursed to turn into a cat. She is accused of attempting to poison the princess. However, Lililucia, now in the form of a cat, is picked up by Crown Prince Gerald, who loves cats excessively, and she ends up doting on her sweetly. If she turns back into a human, she will be executed for a false charge, but if she remains a cat, she will be doted on...!?