What is the name of this Korean music video?

The video is about a couple who are hiking in the woods when something happens causing him to have to leave her to look for help, He has taken photos of where he has left her and other pictures of her. On his way to get help he looses his scarf and it gets wrapped around a tv antennae interrupting the signal. The man in the house comes out, removes the scarf and discovers the camera with the photos. He follows the pictures and the girl is rescued but you don´t know if the guy makes it because this is part 1. A friend and I are looking for the video, but can´t seem to find it. Any help would be great. Thanks.