“Lieder ohne Worte of an Elder Sister and a Younger Sister”
“Ane to Imōto no Mugonka ~Lieder ohne worte~” (姉と妹の無言歌 〜Lieder ohne worte〜)

With Shiori’s birthday coming, Yuichi decides that he will try to do as much as he can for her, while she still has time. A week before her birthday, Shiori gets permission from her doctor to attend school for the remaining week, just like a regular student. Meanwhile, Kaori still insists on avoiding her, and warns Yuichi that Shiori might not survive long after her birthday passes.