My Younger Brother Forces My Flower Path
A girl and her younger brother both time travel back after the girl dies, the reason being the girl became empress and died of ill health and her younger brother felt bad because he ran away. She marries a northern duke (why is it always a northern duke, and not a duke from a different direction?) and thats about it. I dont think thw duke has travelled back like the other two have.
Black Dragon's Taste
I have read very few manga/manhwa set in the modern era, but I like this. Dragon disguised as human for the purpose of killing dragon players makes friends with someone who is a dragon slayer but doesn't know her identity as one.
I Will Become the Hero’s Mother
The Duke's Teddy Bear
Girl possesses Duke's teddy bear by night. Yeah, it's not terrible. BEARable, one might say. Ok bye
Princess Blooms into a Crazy Flower