I was born to a Marquess military family; my father is a hero of the country. Motivated by my mother being murdered one night in a burglary, I too resolved to study the blade. My aim is to join the army just like my father, and to avoid repeating my mother's tragedy. Unexpectedly, despite my gender, my swordsmanship grew strong… However, my ambition ends when I learn that women can't enroll into the army. Furthermore, although I didn't get even a single lesson in proper etiquette, I suddenly have my engagement set with a Ducal House that has churned out prime ministers for generations…