It Happened in Autumn

[Muggle!AU] Draco Malfoy, the Duke of Sterling needs an heiress to save his family, but unfortunately, there aren't many heiress around. But one time he found a woman who was able to save his family, but she is a woman he never expected. So he immediately approached her, offering the world to her with his little lies. But Luna Lovegood hates liar the most.