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."
Maybe you can't hear me because 
I'm breathing too loudly.
Wahrscheinlich hörst du mich schlecht,
weil ich zu laut atme!
Quizás no me escuchas 
porque respiro muy fuerte.
Talvez você não possa me ouvir, 
porque eu estou respirando muito alto.