Tough guy Eun Sung (Song Seung Hun) falls in love with the sweet Ye Won (Jeong Da Bin) when she clumsily falls on him and accidentally kisses him. But Ye Won thinks Eun Sung is rude and temperamental and rejects his interests. The hurt Eun Sung moves to the United States but not before making a pact to meet at a specific spot at the park at the first snowfall. A year later, when the first few flakes of snow begin to fall, Ye Won remembers the pact. Will the two meet again as promised?