Both tackle female romantic relationships with multiple individuals & their particular experiences/ideologies. Saint Love Survivors has some scenes/content that may be viewed as racy so just beware when viewing.
Both dramas have a Shaman office setting, a ML donning a handheld fan & a business plan that entails solving their client's issues.
The plots are very similar and involve psychological suffering + revenge stemming from an incident brought on by a group of evil individuals. The male lead actors' skills in each are very impressive.
Both dramas include ghosts, demons & deities. Handsome ML's fight evil demons along with a FL. The Devil Punisher does have romance as a major story arc whereas Agent from Above does not.
Both focus on the impact poverty, family, community, environment & choices affect/shape love. In each the characters are faced with the question what are we willing to do for love.
Both dramas feature a strong, smart, confident FL that support the Prince/King they love while feeling their true self lies outside the palace walls.
Both include a story plot of mind connection between a male/female & romance.................................................
Both are historicals with a ML chef, romance & food packed into a short length duration..................
Both are dramas that carry themes of reincarnation, childhood friendship, love & death............................
Both movies have the main story arc of a one night stand.....................................................................
Both movies have the same one-night stand mystery that needs to be solved. Since the FL was drunk there could be multiple possibilities including a male friend with a secret crush.
Both Dramas feature a FL that fluctuates between male & female genders. Also, the ML has to address the question of whether he can have a romantic relationship with such a person.

