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."
If you had become a ghost, you could 
have read all the books you wanted.
Als Gespenst hättest du doch in Ruhe
Si te convertías en fantasma, hubieras podido leer todos los libros que quisieras.
Se você tivesse virado um fantasma, 
você poderia ler os livros que quisesse!