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 anything, my heart's 
verging on stopping.
So ruhig, dass mein Herz
gleich stehenbleibt.
Hasta mi corazón está por detenerse.
Mas é que, talvez, o meu coração
 esteja quase parando.