急に降ってきたよね―。
自分の中から洸を消せなかった双葉は、別れを告げるため、冬馬のもとへ向かう。しかし、そんな双葉の決断を知る由もなく、双葉へ連絡しようとする手を止めてしまう洸。すれ違い続ける双葉と洸……。そして迎えたクリスマスの夜。それぞれの想いが交錯する中、洸との思い出の場所に足を運ぶ双葉。何度も、何度も、始まりそうで始まらなかった、双葉と洸。近くて遠い、あと1ミリの青春は、果たして―。
Unable to erase Kou from her heart, Futaba goes to Toma to break up with him. Kou, however, has no way of knowing Futaba’s decision and stops himself from contacting Futaba. Futaba and Kou continue passing each other… Then, Christmas night arrived. While their feelings are intertwined, Futaba visits the place where she has fond memories of Kou. Many times it seemed like something would start, but it didn’t, for Futaba and Kou. So close and yet so far away, just one more millimeter away from their youth…
