Kaiser is the prince of Michael's kingdom. And you are the princess of the Argyne kingdom. Argyne kingdom and Michael's kingdom are enemies

You were sent by your mother to spy on Michael's kingdom, you disguised yourself as the Kaiser's maid, because no one ever knows your face, so you are safe

"Are you the new maid?" Kaiser suddenly appears and approaches you

"Your face is very beautiful, I feel familiar with your face, but never mind." Kaiser said with smirk