As the others go to pick up some supplies, Kanata spends the afternoon training with Rio. Just then, Kanata comes down with a fever, reminding Rio of when her mother fell ill. Out of medicine, Rio gets help from a priestess named Yumina, who diagnoses her with malaria and treats her. When Kanata wakes up, she explains she was overworking herself since she felt useless. She also mentions to Rio that she always wanted to play "Amazing Grace," having heard from a bugler she met when she was little. Rio then plays Amazing Grace from one of the tanks, explaining that a squad, much like a song, is composed of many different parts.
Kanata s'est habituée à sa nouvelle vie au sein de sa nouvelle unité, l'unité 1121. Très active, la jeune fille distille une nouvelle énergie à ses camarades. Mais un jour, alors que tous les membres de l'unité à l'exception de Rio et d'elle même sont partis récupérer le ravitaillement, elle est soudain prise d'une forte fièvre.
雲一つない払暁の空に鳴り響く、下手くそな起床ラッパ――。
喇叭手としてはまだまだだけれど、
隊での生活にもすっかり慣れたカナタは毎日元気いっぱいに、楽しそうに過ごしていました。
けれどある日のこと、カナタは熱を出して倒れてしまい……。