When Miyuki unexpectedly comes across a dying puppy, she trusts the words her grandmother taught her, "When you make a wish upon the wasureyuki (the last snow of spring), it will definitely come true" and she prays for the puppy's recovery. Sakuragi, who is studying to be a veterinarian, passes by and heals it. These two who were drawn together by a mysterious power, are immediately attracted to each other. When the time comes for them to say goodbye at Miyuki's house, they promise to meet again in seven years' time, in the same place. And the two do accomplish the reunion that they spoke of so inevitably. However, when the memories of their younger days return to the space between them, Miyuki disappears. This is a fleeting, pure love story of the two who loved each other, and yet passed by each other...