Both dramas are historical.
They have the same female lead that are fond of cooking.
Setting place is the palace.

Both set up in historical era.
The female lead is the one on the spotlight.
The main story revolves around the palace.

Both are documentaries that focuses on significant persons in a certain country. Difference is that Kingmaker is on politics while A Holy Betrayal is more on the religious type.

The same marriage of convenience trope.
Different attack on the same concept, and character wise really different.

The same marriage of convenience trope.
This one around I think the characters do not match, since they have different personalities but both have that comedic vibe into it.

The same marriage of convenience trope.
Focuses on the main lead couple.
Both male leads have the eccentric/quite different nerd like character.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.

The same in way that they have to know who's the truth and who's the fake.
Same basic concept of investigation though laid out differently.