More than 50 episodes K-dramas

Okay... 

it might be really long, but one thing I love with these  dramas, is that we do have the time to see how are developped the interactions between the different characters and of course we might want to kill the bad guy/girl all the drama long. 

At the beginning I thought I was mad because I was already addicted to 16-episods dramas... how could I handle more than 16, then more than 50 and more than 100?

It is possible and it worth it.

So here is a glimpse of some long-dramas