Naui
Muhyeok
Maybe it's me personally but I felt it was so dragged out by the end. Maybe I'm just not too fond of manhwas where they have like 60 chapters on how they get on after they start dating, but all they did was have sex. There was no drama, no development. Just a bunch of sex. And usually I wouldn't mind, but I really don't like Naui. So it was a bit of a snore fest near the end there.
Muhyeok and Naui: My Irresistible Neighbor