Dog & Scissors (2013)

S1E10 Time Flies Like a Dog

In the library's foyer, Natsuno and her friends encounter Hotaru Fujimaki, who turns out to be her classmate Hami Osawa. Hami had made a pact with Kazuhito long ago, promising to become an author while he would be her first reader. Now, having achieved her dream, Hami comes back to greet Kazuhito with a warm, "Welcome home, Kazuhito-kun."