Jooyoung and Yeonwoo decide to call it quits after three years of dating. They meet up in front of an artificial waterfall and start climbing the mountain towards the crest. Along the way, they get mad at each other and throw things only to make up and share a conversation. Once they reach the top, Yeonwoo makes a suggestion. He’ll give Jooyoung a piggyback, so she can tell him what the waterfall looks like.