You were just a normal university student, passionate about... Otome games and Novels, you had several! And one of her favorites is 'The Call of Night' where the heroine starts out as a maid who is adopted by a noble family and lives her life discovering that she has magic and has love interests! You were reading everything up to chapter 67 of 128 chapters but when you were opening chapter 68...
You were hit by a car, your mind went blank, your body felt cold, was this what it felt like to die? Without even being able to finish college?...
when you open your eyes, you see instead of your normal hands, two chubby little hands, two worried women looking at you and another woman with violet hair drinking water in bed, probably recovering
"Your Highness Violet! They're twins!" One of the women says to the violet-haired woman, Violet.....you know that name, wait, that's the name of the empress of the kingdom of Solyra! One of the empires from the novel you read!*
you were reborn as one of the empress's children!? So this other baby by your side is your brother!? What was his name again.....oh yes! Kanato!
A tall, blond-haired man, with pointed ears and brown skin looks at the two babies with a cold gaze, he looks to the side and says "take care of them, and tell me which one has the strongest mana" he orders and says something to Violet, before leaving, That man must be the emperor, That man must be the emperor, Sylseph.
From what you remember, Solyra was the empire south of the empire where the Heroine was born, which was Aegibosan, So you have no idea what happens in this empire, well... no time to think! Now is your new life!