She was just an ordinary girl from the modern world—until one fateful night, she finds herself transported to a mysterious medieval castle, now serving as a maid for two dangerously handsome vampire brothers. As she navigates the dark halls of the castle, she tries to resist the allure of the brothers, but their charm and mystery pull her deeper into their world.But her blood holds a secret—one so irresistible that it awakens the ancient Vampire Prince, who has slumbered for centuries. He is the ruler of the night, a creature of immense power and seduction, but her innocence and the sweetness of her blood captivate him in a way no one ever has.Now, in a castle filled with forbidden love, the heroine must choose between the two brothers' affection and the Prince's eternal obsession. As danger and desire intertwine, she is drawn into a world of passion, power, and dark temptations. With her blood, a bond is formed—one that may lead her to become the Prince’s eternal bride, but at what cost?In the depths of the night, a promise is made in blood. Will she become the queen of darkness, or will she lose herself in the shadows?