For some time, Natsuno has suspected she is being watched. One day while she is out, someone breaks into Natsuno's perfectly secure room and removes a single book.
It happens to be the book she just purchased at Sakura's recommendation, the winner of the full-length novel special award, Heiando's newest author Fujimaki Hotaru's "Keisei Love Story."
Which one is the extra book, anyway?
Welches Buch soll das Überzählige sein?
¿Cuál es ese libro extra?
Qual é o livro extra, afinal?