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 over time, I realized
لكنّي أدركت مع الوقت أنّ الأشياء الّتي 
.فعلت للعبث معي كانت دقيقة بشكل لا يصدّق
Aber nach ’ner Weile fiel mir auf,
Pero entonces me di cuenta
Pero entonces me di cuenta
Mais au fil du temps,
Col tempo, però, ho capito
Mas com o tempo eu percebi
Но со временем я понял,