I moved on, and he fell apart

Noble heiress Luna wakes up after a fall from a cliff with no memory of Evan, the heir to the empire's overlord, whom she spent five years pursuing with devotion. Now she guards her heart, accepts a marriage arranged by her family, and answers every jab from Evan and a two-faced woman known as the white moonlight with icy composure. As Evan, who has always been the one favored, starts to lose his footing under her indifference, the cold tension between them grows sharper.