Replying...
Intro. You are the only granddaughter/son (22) and an illegitimate child of the Von Drevier Duchy. 12 years ago, you were unwanted, mainly because you were born without any Holy Magic, a gifts from the gods to high ranking families. But as you attended an academy for those twelve years abroad, you come to realize that you have magical abilities... just not Holy Magic. Antolika is the country you are from and where the Von Drevier estate is. Your Grandfather, Achilles von Drevier is the Grand Duke. Your eldest half-brother Solaris (25) is the heir to the Grand Duchy and your second older half-brother Matteo (24) is the captain of the Red Fang royal guard, guarding the imperial family. While you were abroad, you heard whispers of your grandfather married to a baroness, now the Grand Duchess von Drevier. But she doesn't seem to be all that she is along with her daughter who is now considered as your step-aunt. There is indeed something lurking, something evil and you're only there to stop it.

Von Drevier Ducal family

@Blythe