New Face (2020)

Genres: Comedy, Romance, Fantasy, Melodrama
Tags: Rags To Riches, Character Development, Second Chance, Spirit, Detective Supporting Character, Transmigration, Supernatural

Both dramas feature a similar scenario where ML suddenly has to take care of two wives and two sets of children - ones from his "current" identity and ones from his "previous" identity. The difference lies in how the situation came about - Miracle That We Met he reincarnated and in New Face he had his identity changed (against his will).

Genres: Historical, Romance, Drama, Melodrama
Tags: Power Struggle, Arranged Marriage, Adapted From A Novel, Political, War, Badass Male Lead, Ambition, Nice Male Lead, Royal Family, Family Relationship

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide

Genres: Romance, Wuxia, Fantasy
Tags: Xuanhuan, Political, War, Fantasy World, Novoland, Adapted From A Novel, Adventure, Prairie Setting, Action, Historical

The main idea of both dramas is that the main character literally swaps faces with someone else. In LRRFTF, the main character's family tried to kill her, and she swaps faces with someone to get revenge and find out the truth about what happened. In NF, the main character didn't choose to get a new face, someone forced him to. He is also trying to discover the truth about the past event. In both dramas, the protagonists search for the truth and investigate while pretending to be the person whose face they have.
In fact, apart from that, these dramas are very different, but they do have some points in common.

Genres: Action, Military, Historical, Comedy
Tags: Power Struggle, Sengoku Period, Oda Nobunaga, Adapted From A Manga, Time Travel, Honor Suicide, Doppelganger, Slight Romance, Hidden Personality, Deception

Genres: Comedy, Drama, Supernatural
Tags: Social Worker Male Lead, Gangster Male Lead, Moral Dilemma, Mafia, Child Abuse, Yakuza, Identity Swap, Body Swap

Genres: Comedy, Youth, Supernatural
Tags: Student Male Lead, School Setting, Childhood Friends' Relationship, Classmates' Relationship, Samurai Male Lead, Teenager Male Lead, Magical Object, Flashback To Past, Miniseries, High School

- both male leads go "undercover" in a drug cartel to crack a case/for their own reasons
-lots of action and tense situations
-minimal to no romance

Genres: Thriller, Psychological, Drama, Melodrama
Tags: Hidden Identity, Revenge, Adapted From A Novel, Wrongfully Accused, Prison Escape, Murder, Injustice, Torture, Corruption, Death

-both male lead goes undercover
-lots of action
-drug cartels and crimes


-age of legends has more romance

Genres: Mystery, Drama, Family
Tags: Investigation, Disappearance, Transportation Industry, Co-workers' Relationship, Involuntarily Missing Person, Workplace Setting, Police Department Setting, Manager Male Lead, Married Female Lead, Married Male Lead

Genres: Thriller, Mystery, Drama
Tags: Revenge, Identical Twin Male Lead, Death Of A Stepfather, Writer Male Lead, Reporter Female Lead, Prosecutor Male Lead, Brothers' Relationship, Secret, Death, Murder

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide