Both series have the same vibes with "fraud" cases but its woman version.
The FL is so smart that she can predict the next move.
Both series related with law and Justice. One is lawyer and the other is prosecutor.
Both main lead have "cold" character.
Its just eps 4 now that i made this recommendation. (I'll edit soon)
But, its will be exited kdrama.

The same vibes. Try to help people to grant the last wishes before go to afterlife.
Comedy and emotionally the same time in each episode.
Tell story about any kind of people situations.
Great dramas

Both dramas has the same vibes. Family and friends are the best part.
Both dramas about FL who has terminal illness.
Both FL have strong characters.
Both drama has cold heart character ML.
Both FL at first just give up with life at first until met the ML and they want to be alive in the rest of their time.
The good one is : no love triangle.
Both dramas has good OST.

From the 1st episode of Konin Todoke ni Han wo Oshita dake desu ga, I feel its so familiar plot story.
The ML fall in love with someone that he couldn't have it (his sister in law).
The ML have little bit the same character. The FL have limit time to stay together with the ML.
They have the same basic rule. Don't fall in love by each other when they live in the same roof.

Both dramas have the same vibes.
Both dramas having the same background of police freshman / students.
Both dramas having a police docent who have unsolved case behind.

The main lead are work in police station.
The character of prof Yoo Dong Man in Police University is familiar with the character of Non Hwi Oh in Mad for each other.
They both are good and honest police officers.
They both have issue that make them discharge from their work.
They both have unfinished case that must still do, but cos of their own problem they can't finish it yet.
They found out the dark side of the bad police officer issues.

Both have similar vibes.
And its start with kiss.
A man who falling in love with ordinary / shy girl.

I think its pretty similar both drama.
1. The work place is about women fashion magazine
2. Both have a "cold boss"
3. Both main female lead are clumsy but cheer full and hard worker. They want to learn to be a better worker.
4. Both main female have nice and lovely family also a little sister.
5. Both drama its about fashion magazine company that almost down.

About the romance is little bit different.

This is the opposite princess in Bossam and prince in 100 days my prince
Prince / princess stayed with poor ML/FL.
Prince / princess got announced to be dead.
Prince / princess got hunted to be killed.
The poor ML/FL is supposed to be born in noble family.
Both drama have similar village view.

Its just my opinion. Lets enjoy the show ???