Suddenly Became A Princess One Day

When I opened my eyes, I was a princess! But why does it have to be a princess in this romance novel who has the fate of death from her own blood-related father! If I want to live, I will have to stay away completely of his sight. However... "Since when did this kind of scumbag started living in my castle?" Not a single drop of blood nor tear to drop, that cruel and cold emperor, Claude! Will Athanasia who has entered his eyes survive? "I... What should I do......"