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."
I just meant to check to 
see who had written it.
Ich wollte doch eigentlich nur sehen,
Solo quería ver quién lo había escrito.
Eu só pretendia checar quem era o autor.