I'm new to the mystery and thriller genre. For the last few years I've only watched rom-coms, and slight mystery dramas. Some examples of the slighttt mystery I've seen..

 Strong Woman Do Bong Soon: it was not only romance, but it was also centered around a kidnapper/evil guy? I loved that and how they solved the case. 

The girl who can see smells: Again, it was in the romance genre but it also had them solving a murder case.

I love those sorts of dramas, but I haven't seen a lot of them. So if you have any dramas similar to those two, please recommend them! 

I am also open to a less romantic mystery drama, it's not as preferred but I am open. Just tell me beforehand which ones are on the more romantic side and which ones are more focused on the mystery/thriller.

P.S. Plz note that I am new to the whole mystery and thriller genre, so please nothing to dark or hard to get into if you know what I mean. Something you would recommend to a newbie getting into this drama so that the more they watch, the more they can get into the heavier dramas. 

Modern or Historical, either works.

Thank you!!

Here's my list of Dramas I've watched where either "thriller" or "mystery" was ranked as 1st  or 2nd priority genre. Most also have some romance elements. You may find something here that suits