Iroha is convinced that all rumors are connected, so she decides to reply to the spam messages that are being repeatedly sent to her. The one who has been sending the texts calls herself Ai, and she asks Iroha to come to Endless Solitude to delete her existence. However, Sana Futaba, who is a captive in Endless Solitude, seems to be satisfied with her life there.
But they do exist, you know?
People who might as well be invisible.
Pero hay gente que parece invisible.
Pero hay gente que parece invisible.
Mais il y en a, non ?
Des filles presque invisibles…
Però è vero che esistono persone 
che sembrano praticamente invisibili!
Mas há pessoas assim,
que parecem até invisíveis!