I've been thinking for a while now, the king and queen have black hair. The only one with blond hair is the male concubine. 
Comment by rei on Surviving As A Maid - Chapter 6
12 Replies
Oh sh**
truh
truh
well thats my theory because the king loved the male concubine but they cannot procreate so maybe just maybe thye blonde and the queen are force to concieved a baby
Maybe it's an ancestor features? ...
@rei
Spoiler!
Just read a spoiler(not sure if it's 100% true) that the concubine 'the blonde dude' forced himself on the queen to have a child that looked like him.