Spin-off short story of the "Senritsu Kaiki File Kowasugi!" series, which is set after FILE-04.Spin-off short story of the "Senritsu Kaiki File Kowasugi!" series, which is set after FILE-04.Spin-off short story of the "Senritsu Kaiki File Kowasugi!" series, which is set after FILE-04.
