Killer Pretty Princess

She is the number one female killer in the world. She is invincible and invincible, but in the end she is killed by the person she loves most. He is a useless prince who has been humiliated and treated harshly since childhood. He is groveling and flattering in front of others, but he has a powerful assembled army behind him. Two people who seemed to have no intersection were bound together because of a time travel and a granted marriage. Visions descended from the sky, and purple energy came from the east. Let's see how the cold princess joins forces with the sinister prince to turn the entire court upside down!