On a snowy day, Haruka and Shizuku go outside to have their lunch, though soon find it a bit too cold. As Shizuku dreads the day when she'll have to part ways with Kotone, Haruka brings Kotone over to cheer her up, encouraging everyone else to come out for a snowball fight. Meanwhile, Kaede mentions to Mitsuki how she believes Haruka and Yuu are dating. Later during gym, Haruka feels the need to compete against Kaede in jumprope, only for her group to end up coming last and having to clear up the equipment. As Haruka offers to do it alone and the others leave, the teacher assumes they were finished and ends up locking Haruka in the gym storage. Learning of Haruka's disappearance, the girls set up a ladder to the gym storage's window, where Yuu manages to get a kiss with Haruka, before they manage to get the door unlocked.
珍しい雪にはしゃぐ春香は「せっかくだから外でお昼を食べよう」と提案するが、みんなは乗り気でない様子。唯一同意したしずくと二人外へ出た春香は、「三年間を大事にしたい」「この景色を目に焼き付けておきたい」との話をする。改めてしずくとコトネの関係と境遇を思い知った春香は、やはり雪の中思い出づくりをしておきたいとみんなを呼びに教室へ戻る。一人残され、卒業後のことを考え涙を流すしずくの元に突然コトネが現れて…。
평소 보기 힘들었던 함박눈에 잔뜩 들뜬 하루카와 시즈쿠. 그러나 친구들의 반응응 영 시원치가 않았는데... 한편 미츠키는 카에데로부터 충격적인 사실을 접하게 되는데...
