She is a princess sent to the enemy nation to seal a marriage alliance, and he is that nation’s youngest chancellor. In their past life, they were bitter enemies: he wanted to put a puppet emperor on the throne, while she wanted to use the emperor’s power to avenge her mother. Every time they worked together, they were scheming against each other. Every glance was a clash of blades. In the end, he poisoned her with his own hands. After being reborn, she discovers that they both retain their memories of their past lives, but this time the story begins at a different point: she became his prisoner three days earlier than before. He thinks she will use him and betray him just as she did in their past life. But this time, she chooses a path that will utterly break him: she becomes the person he trusts most, then calmly marries his sworn enemy, the emperor, at the very moment he falls in love with her.
