All former students of the Sakura Tennis Club come together for a reunion on New Year's Eve. They are all in their 20s and Mizino is delighted to see his longtime secret love Tatsuya again. During the reunion, a ski trip is planned during which they will all visit Mizuno's mother's cabin. Suddenly, in the middle of the holiday, Mizuno's mother falls ill, leaving the care of the holiday to Mizuno. Everything seems to be lost, but then Tatsuya comes to the rescue...