Paeryun Gongjakgaeneun Gajeong Gyoyugi Piryohada

A governess named Estella Margaret Montiel works for House Bertha, but her responsibilities extend beyond academics. She is aware that Duke Diego Bertha, the half-brother of her students, intends to kill his entire family. Concerned for their safety, she decides to intervene by attempting to change Diego's behavior. Despite his charming demeanor, he is seen as a threat, and Estella hopes to instill in him a sense of family values. The challenge lies in whether her efforts can truly reform him or if the situation will end in disaster before any progress is made.