Both couples have similar misunderstandings due to having married young and “wasted their youth” for/on each other. Both couples realize they still love each other and only resolve misunderstandings (and understand each other) after they part. No serious second lead love triangles. The supporting cast and friends are funny.

Same quirky vibe w/ crazy supporting characters. A cheating spouse(s), rich people, and materialistic individuals from all walks of life. But the romance trumps all. Cute and sweet. Seriously.

If you have seen both movies, you’ll understand. The main characters find out that their respective significant others are in an entanglement. Proceeding the news, both MCs talk about their SOs and perform a lot of charades. The romance is subtle, thoughtful, innocent, and fresh.

Main adult female character is tough and can fight, and befriends a high schooler. This movie is a lot more on the lighter side, but the the main character has a similar vibe to the MC in Brave Citizen.

The Japanese version has the same premise as the Korean version (the Korean version is adapted from this movie).

Similar themes and devices:

Adult is inspired to fight a rich schoolboy who is a menace to those around him. A big event is thrown to showcase the fight.

An adult is inspired to fight a rich and pompous school boy who gets away with assaulting others. The ending is similar.

A down on her luck female is challenged to fight a male who’s a menace to those closest to her.

- both women come from lower-class
- both women made a lot of sacrifices for those they love
- both women have shaky relationships with their parents
- both women challenge gender norms
- both endings have a similar energy

MLs always protect and lookout for the FL. Both have ties to the Korean mafia, but wanted to go in a more civilized and non-criminal direction in life. At one part of the drama MLs are wanted for murder. Romance is similar.

- both male protagonists can see spirits/ghosts and help them.

- both have a special gift.

- both have deceased dads.

- both have a rag tag group of friends.

- both are loners.

MLs are unconventional, macho, and part of the lower class tier. They fall for the beautiful women out of their league. MLs have a loving and supporting family.

FLs are educated, beautiful, and distant. But they can be sweet. Their lively and fun side is brought out when they meet the MLs. FLs have a no-good fiancé.

ML and FL come from different worlds. Outside forces keep them apart, and at one point it seems as though they’ll forever be apart.

- Both female leads experience bullying at the same degree.

- The mean girls are alike: Rich, pretty, conniving, and popular.

- Both female leads have a peer who bit the dust. And a peer who turned a blind eye.

- They both become teachers.

- They plan in order to escape/defeat the perpetrators.

- They bend the law.

- They move into their love interest’s home for protection and comfort. They meet their love interest in not so favorable circumstances. Their love interest helps them stop the bullies using their own smarts and knowledge. There’s also an age gap (in RL)

- Both female leads experience bullying at the same degree.

- The mean girls are alike: Rich, pretty, conniving, and popular.

- Both female leads have a peer who hit the dust. And a peer who turned a blind eye.

- They both become teachers.

- They plan in order to escape/defeat the perpetrators.

- They bend the law.

- They move into their love interest’s home for protection and comfort. They meet their love interest in not so favorable circumstances. Their love interest helps them stop the bullies using their own smarts and knowledge. There’s also age gap (in terms of RL).