Romance is a Bonus Book (2019)

Both titles are heartfelt romances between childhood friends. The main characters are in their 30s in both dramas. The interactions between the leads are both funny and endearing, and hit you right in the feels.

Both dramas are typical Noona romance-style
The leads are childhood friends and quite close.
In both dramas, the ML is the first one to realize she has feelings for the FL and starts pursuing her.
FLs in both have had unsuccessful relationships and find solace in the MLs.
very romantic and cute drams