As soon as her engagement was annuled, Leticia, the daughter of a duke, regained her memories of her previous life as a nurse. She wanted to make up for her busy past life in this life. However, she was unexpectedly asked by the second prince to help him protect his country! She used the knowledge of her previous life to propose various measures. She thought everything was going well, but one day, she received news that a vicious epidemic of unknown cause had broken out in the royal capital! The long-awaited volume 2 of the comic adaptation of a lazy daughter of a duke and her struggles!