K-Dramas that were stretched needlessly

You know there are certain shows that you watched and you’re really enjoying as they go, then you suddenly notice it’s reaching a conclusive point but somehow there are another 4 episodes left. And then you suffer with unnecessary troupes or drama that makes no sense just as filler so the drama can reach that ‘16 episodes’ mark. 

In  this list, you can add any drama with any given number of episodes which just felt TOO LONG or something that would have vastly benefited from ending early. 

Even dramas that are 12 or 8 episodes long could feel stretched to you so you can add anything that you want as long as it meets the criteria of long runtime=quality deterioration.   

Note: The show does not need to be one that you necessarily dislike, it could also be a show that you like but you felt was stretched for no reason.