Mysterious, mystical and mesmerizing

Returning from Korea..
I wanted to submerge myself more in Korean culture
So watched an inflight Korean movie : The King's Case Note
A period piece but light-hearted comedy..

Watercolor sketch of a female character in the movie...
Yes, she was the only prominent female character:
Mysterious, mystical and mesmerizing
But No, she was not the King's love interest... in case, you were wondering..