Kuroha's younger sisters abruptly visit Sueharu's house to tell him that she has developed amnesia. All her memories from summer break onward are gone, and they stop right when she was about to confess to Sueharu. So she suggests starting over from the moment of her own confession and erasing everything she did during the cultural festival. But Kuroha's behavior is making Shirokusa suspicious...
but this is all the time 
you get in high school.
.لكن هذا كلّ الوقت الّذي لديك في الثّانويّة
Schüler bist du nur jetzt.
pero no volver a tu adolescencia.
pero no volver a tu adolescencia.
ma questi sono gli unici anni 
delle superiori che hai.
Mas o ensino médio você
só pode frequentar agora.
а вот в школу второй 
раз не пойдёшь.