High School Return of a Gangster is like the korean series of The Dude in Me which is a movie. The same concept of soul swapping with a high school and a gangster and how it affected the course of life of the male lead. Both also have the comedy aspect that I like.

Revolves around High School
Savage male lead
Themes of bullying and friendship
Also involves family problems and studying

The same premise of having arranged marriage.
Arrange marriage that gains benefit to both parties, usually reason behind is the house.

Having the same marriage for convenience plot and both are Japanese dramas.
The female leads are both cute and kinda shy.

Having the same concept of travelling back to the past.
Both leads came from the past.
All about revenge.

Both male leads are handsome and have powers into them.
My Demon also has the parts were they compare him to a goblin for maybe reference with the Goblin Korean drama. Both have romance fantasy as genres

It has the same vibes with the leads. The male lead of drinking solo and the female lead of cheers to me has the same solo theme between them. Both shows involve food and drinks.

Having to see food as part of the storyline.
Let's eat is more on eating and also the dishes, this drama is also about food but more on the process of getting that food.

Survival Game.
Alliances.
Brain Game.
Need strength as well.
Mind games.
Men & Woman.
Money Games.

Survival Game.
Alliances.
Brain Game.
Need strength as well.
Mind games.
Men & Woman.
Money Games.

Survival Game.
Alliances.
Brain Game.
Need strength as well.
Mind games.
Men & Woman.
Money Games.

Survival Game.
Alliances.
Brain Game.
Need strength as well.
Mind games.
Men & Woman.
Money Games.