She is not an agent, but she is receiving successor training that is even more cruel than that of an agent.
After finally becoming the master, when I woke up, I found that I had traveled through time and became a princess whose life experience was a secret and had been isolated from the world since she was a child.
Fate played a trick on her, and she fell in love with him, but he lost his memory and married someone else.
He helped her get over her breakup, but had to give her up due to the struggle for power.
He is the proud man of heaven. He cannot accompany her, but he pays close attention to her silently and helps and comforts her when she needs it most.