She, the legendary cold-faced killer of the 21st century, traveled to another world and became the eldest daughter of the Du family that was despised by the whole country. In the Du Mansion, aunts conspired, sisters framed them, and maids rebelled one after another, but she was no longer a weakling who could be exploited by others, and her infinite beauty blinded them. He was a talented young man with a noble status and peerless peerlessness. When they met for the first time, he was teased by her to see how the rich and evil king used thirty-six strategies to tyrannically marry her. The two are competing against each other. In the end, who is the one who kneels down and sings the song of conquest?
