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."
That's what your father 
Osawa Shuzan said.
Das hat dein Vater,
Shuzan Osawa, mir versichert.
Es lo que dijo tu padre, Shuzan Osawa.
Isso é o que o seu pai,
 Osawa Shusan, disse.