TheCarelessOne's Questions (1)

Sooo, awhile back I was reading this story, I believe it was a Manhwa but could also have been a Manhua

And I need your help finding it.
This is what I remember
It's historical -
Female lead has black hair ( like every other乁༼☯‿☯✿༽ㄏ ) -
She's also the empress ( like every other乁༼☯‿☯✿༽ㄏ ) -
She has a sister with redish - pink hair -
she has memories of her death and has to change the events before it happens again. -
Male lead is the emperor ( obviously ᕙ( ° ʖ °)ᕗ ) -
He also has black hair -
He has a lover who is publicly known as his mistress -
His mistress happens to look very similar to the empress's sister but her hair is more red than pink.

Here are more hints - in the beginning chapters "every time I looked at the lips I thought " sock monkey lips " But the art in general is very pretty. The mistress mentally abused and uses him.
He lets it slide cause " I think " she was there for him when he was at his lowest. I know some fu#ed up sh#t happened to him when he was little. Anyway on to the empress So this is the part where I'm confused I think in her first life attempt her sister was the empress and something happens and the emperor ends up beheading her whole family including the empress her sister.

I'd give you more but I don't want to confuse you further with more bad explanations, IF ANY OF THIS RING A BELL PLS LET ME KNOW I'll look at all recommendations.