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'd be imposing on the people 
at the post office, too.
Und den Leuten von der Post
kann ich das auch nicht antun.
También molestaría a los del correo.
Eu estaria me impondo às 
pessoas dos correios também.