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."
Don't worry about it. 
You've done plenty well for yourself.
Mach dir keinen Kopf drüber.
No te preocupes. Hiciste bastante.
Não se preocupe com isso. 
Você fez muito bem.