Natsuki accompanies Atri who is on her way to school. However, when they arrive, they find that most of the school is underwater. Although they managed to get into the school building, inside it was full of empty classrooms and an unexpected teacher. There, Natsuki is faced with the saddening reality of the lives of the people who remained in their town.
Then maybe the fact that 
you can lose your memories
إذاً ربّما حقيقة أنّكِ قد تفقدين ذاكرتكِ
Heißt das, dein Speicherverlust
könnte Absicht gewesen sein,
Puede que lo de perder la memoria
Puede que lo de perder la memoria
Dans ce cas,
peut-être que tes pertes de mémoire
Forse creare un umanoide 
più simile agli esseri umani
Então talvez o fato de você
conseguir perder suas memórias...
Так вот почему у тебя
с памятью проблемы…
การทำให้สูญเสียหน่วยความจำได้