Ep 10. Time Flies Like a Dog

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."