1. One Litre of Tears
It's really sad, and I guess those people who say they didn't cry while watching this drama are lying.
2. Stairway to Heaven
Why does the girl have to die?! Why!?!
3. My Girl and I
It was really sweet and heart-warming, but then again, the female protagonist had to die. And not just a simple way, it is in a very sad way.