Read manga: The Cliff

manga
Summary:

While hiking a mountain with his friend, Dong-uk stops to take a picture with him on a steep ledge which collapses and leaves them stranded on an isolated cliff. He accidentally drops a chocolate bar and it gets caught in a tree below them. While his friend is descending the cliff to retrieve it, Dong-uk accidently lets go of the makeshift rope and watches him fall to his death...but is he truly dead?