if she just corrected him about her gender when they first met all unnecessary shit could have been avoided but ig thats fiction for you
The emperor knows from the beginning that Yeon is a girl.
WAIT FOR REAL? WHAT CHAPTER WAS THIS I THINK I MISSED IT
I read it in a spoiler. But I think in the beginning he recognised her as the person from the temple.
if she just corrected him about her gender when they first met all unnecessary shit could have been avoided but ig thats fiction for you