Same premise of contractual marriage.
The female leads are quite awkward individuals.
Both leads are cute.

The same historical theme drama.
Almost the same era of chinese invasion. The clothes are similar.
War is also part of the storyline

It has the same story of former idol characters/character.
Totally different storyline and genre but have the basic "idol" in them.

I think the vibes of having celebrity like characters are the same though really different storyline. Still surrounding about idols or celebrities in general.

Same toxic relationship trope.
If you want to stress yourself they have the same vibe of frustrating relationship.

Talks about relationships
I get the advice unto other relationships similarities with the drama though not the whole drama is really similar more like on certain parts

They have the same vibe as a slice of life drama.
More on romance or relationship realizations or lessons

They have the same vibe as a slice of life drama.
More on romance or relationship realizations or lessons

They have the same vibe as a slice of life drama.
More on romance or relationship realizations or lessons

Have the same plot or theme of discussing mental health.
The story revolves around a personality disorder.

They have the same vibe for me. Both working hard in something new/start up. The surroundings as well are quite similar

Both have main leads that are powerful. The same vibe. Have a fantasy genre into them. Female lead that is bubbly.