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."
Ah, the beautiful love 
between a master and pupil.
Die wunderbare Liebe
zwischen Meister und Schüler …
Ah, el hermoso amor entre maestra y pupilo.
Ah, o belo amor entre mestre e aluno.