My Brothers Beg for Forgiveness, But I'm the Dragon Queen!

In the Frostmark Empire, trapped in an endless winter, only the marriage between a pure-blooded royal princess and the Abyss Dragon can bring back the sun's warmth. Princess Diana grows up happily beside her three brothers—until Lorelei arrives. Using a stolen dragon scale, Lorelei takes all the love Diana received and her position for herself. Deceived, the three brothers turn their backs on Diana and offer her as a sacrifice to kill the dragon. Only after the dragon carries Diana away does the truth come to light. By then, it is too late.