Male lead falls first and way before female lead and female lead takes some time to like him back or falls for him after long time.
Female lead should be at least strong who bites back and isn't being pushed around people or second male lead and defend herself and speaks her mind. I do not like naive clingy dumb female lead, i want non cliche female lead who is strong. :p
Sorry if it was specific.
You can recommend me from any country and genre but no sad endings ;^;