What Is The Saddest KDrama You Have Ever Watched?

I cried a lot while watching Missing you and Fated to love you (Korean version). Rooftop prince started out hilariously, but then the plot thickened and it was a real tear jerker.

The first drama that made me cry was Reply 1988 and the second was Signal.  but only a little bit.

I think the 2 Korean dramas i found made me the saddest were, 49 days and Empress Ki. I had such an emotional attachment with these 2 dramas and I cried so much watching them.

I can't even name the amount of Japanese dramas that had crying my heart out.... there are way too many!

49 days!  Loved the drama!!

Nine Times Time Travel will make you cry, plus it's awesome. 
49 days is basically a drama about crying, so it ought to be recommended, but I don't remember liking it too much...
Bridal Mask is also really sad. 

But honestly, when it comes to crying, I go in Jdramaland. 

Autumn Tale
Hong Gil Dong
Flowers for My Life
Incarnation of Money

The first 3 can hold their own against any sad J-drama. Incarnation had sad moments.
 

@Maya

I know right!!! 

A Thousand Days Promise