emi:
I believe Strongest Deliveryman (2017) fills out all your criteria. FL and ML are both working as delivery people for restaurants and start off on a misunderstanding (so no love at first sight). Both are smart and ambitious. And if I remember correctly ML falls in love first and FL doesn't know much about love. Also SML does get his own love story.
Suspicious Partner (2017) also has some sweet romance where the leads start off as enemies of some sort.
Uncontrollably Fond (2016) have leads that are ex-lovers and because of their history, they hate each other.
Thank you! I´m going to try Strongest Deliveryman. I already watched Suspicious Partner and Uncontrollably Fond.
Suspicious Partner was cute, but the FL falls in love first and I usually don´t like that that much.
Uncontrollably Fond is one of those examples that I have in mind, when I think of bad romance progress. It makes absolutely no sense to my why they fell in love.