Alexandrite

Marie is an earl's daughter (albeit extremely poor) who chose to serve as a bureaucrat in the castle rather than pursue a normal marriage. One day, Duke Meltrefus, who holds the highest rank among the nobility, arrives as her new boss. Not knowing what her new superior looks like, Marie commits a terrible blunder... 60% comedy. 40% serious. Main story complete. ※On September 20, 2014, it was published by Ichijinsha Bunko Iris under the title "A Civil Official's Daughter's Love Record: Sealed Memories with His Grace the Duke." ※The bunko edition contains some descriptions that differ significantly from the web version.