In the library's anteroom, they find Natsuno's stalker Fujimaki Hotaru--her classmate Osawa Hami.
She and Kazuhito had once exchanged promises--that she would become an author and he would be her first reader. Having become an author, Hami returned to see Kazuhito. "Welcome home, Kazuhito-kun."
It's probably because 
I'm not a real author.
Bestimmt deshalb,
weil ich gar keine richtige Schriftstellerin bin!
Debe ser porque no soy una escritora.
Provavelmente é porque eu não 
sou uma autora de verdade.