I remember watching a k-drama very similar to this... I forgot it's name... But is this m...

“Mr Queen”?

I don’t think it’s an adaptation of this manhwa, but the FL are really similar and they are both empresses.

Also the king had an concubine... Who didn't see him as a man

Him reading the 18+ book

Idk feels so familiar

So in Mr. Queen, the king was reading 18+ books but it was only an upfront to cover up the fact he was reading military tactics book. He was somewhat of a “puppet king” so the people around him didn’t really see him as a king. He also had a concubine, but that concubine saw him as a man and was in love with him.


I’ll say just watch Mr. Queen and see if it’s what you’re talking about. If it’s not, I still think the drama would be of interest to you.

Thankyou

I'll check it out