Do you want a drama with just saints? I admit that that female villainess trope is old but sadly it works.
Having it doesn't exactly make the story automatically bad.
I enjoyed it mainly because we are supposed to see how the main characters reacted to challenges
The male lead was weak at the beginning unlike the female lead
It was a breath of fresh air to have a strong female lead and a weak male lead unlike your usual fare.
The male lead grows and the female leads learns to be vulnerable.
Talk about role reversal