“The Disappearing Adagio”
“Kiesari Yuku Kanjogakushō ~adagio~” (消え去りゆく緩徐楽章 〜adagio〜)

Shiori’s birthday is days away and Yuichi wants to throw her a birthday party at a local café. He invites many students and classmates from school, along with Nayuki, Ayu, and even attempts to invite Kaori, who is reluctant to attend. As the minutes count down to midnight on her birthday, Yuichi and Shiori spend what could be their last moments together.