Takeru's trip back to his original world concludes after an encounter with his childhood friend, Sumika. After his return, he learns about the enigmatic Yashiro Kasumi's mysterious past.
But they couldn't prove that 
any language was being used,
،لكن لم يتمكّنوا من إثبات أيّ لغة مستخدمة
Aber sie konnten nicht herausfinden,
ob sie eine Sprache benutzten.
Pero antes de que pudieran demostrar
Pero antes de que pudieran demostrar
Encore eût-il fallu
qu’ils parviennent
Ma non riuscirono a dimostrare
 che usassero alcun linguaggio,
Mas antes do plano ser descartado
Они не то что не поняли их язык, само
 существование языка осталось загадкой,