Maybe it was because I love books... Maybe it was how believable and healthy the relationship between Kang Dan-i and Cha Eun-ho was... Or the great side characters that were actually enjoyable to watch... But Romance Is a Bonus Book quickly became my favourite series (along with Coffee Prince).

I have to be honest, I've struggled with many K-dramas that I watched. I don't find particularly charming guys being rude, aggressive or jealous. I don't like the damsel in distress trope or the cool guy with the warm heart crap... So, maybe that was why I was so happy to find this gem.

All the characters here have personality and agency. They might be a bit ruder here and there or jealous and needy from time to time, but is all in the boundary of a healthy relationship. Also, the side plots are compelling and you don't just sit there waiting for them to go back to the romance (but as I said, I do love books and I did enjoy the side characters).

I saw some comments complaining about the pacing, but I think that the slow build was also a plus side for me. It was what made me more invested in the story and what made it feel more natural and real.