“Introit in the Snow”
“Yuki no Naka no Nyūsaishō ~introit~” (雪の中の入祭唱 〜introit〜)

Today is Yuichi’s first day at the local high school, and is admitted into Nayuki’s class. As Yuichi is walking home to buy food for dinner, he runs into Ayu Tsukimiya, the girl from the day before, in the exact same situation. As they are walking home, they run into a quiet first-year student. When he goes to shop for groceries, a mysterious girl attacks him, but is exhausted from hunger.