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."
So that's how you want to fight?
Aha, darin willst du dich also messen?
¿Así que de esta manera 
es como quieres pelear?
Então é assim que você quer lutar?