Via

Bunny is a 4-year-old orphan who looks ordinary—but she’s actually a half-demon and the heir to the Demon King. On her journey to become the next Demon King, she’s suddenly adopted into a ducal family. But it turns out to be the House of Yudia—a holy lineage that opposes demons. Though it seems like a disaster, Bunny decides to use her Prophecy Notebook and irresistible charm to win them over. Can she find a guardian and become the Demon King? Follow her journey!

Ack! I'm trapped in this webnovel, "Brigitte Wants to be Happy!" No prob, I KNOW what's gonna happen so I'll just—wait. I'm not Brigitte? I'm her aunt, Princess Yerenika?! Uh-oh. I'm stuck 20 years before the main plot... and everyone in my generation ends up tragically dead! Her parents, dead. Me, dead. Villain's dad, King Euredian, dead. A-ha! That's the key. I just need to prevent the villain from being born...time to break out some seduction schemes and flirt like my life depends on it!