Synopsis：To save her gravely ill younger brother, the heroine is forced to replace her selfish cousin as a sacrificial offering to the infamous Dragon Duke, rumored to be brutal and bloodthirsty. Unexpectedly, the “monster” turns out to be a strikingly handsome man. After their marriage, he dotes on her endlessly and helps her rise to power and glory. Meanwhile, the cousin marries a man who seems gentle and kind, only to be treated cruelly. When she discovers the heroine’s blissful life, she is driven mad by jealousy.