Kyotaro Nishimuras Travel Mystery Soya Honsen Murder Incident

While returning from a business trip to Hokkaido Detective Kamei of the MPD greets a middleaged traveler in the waiting room of MinamiWakkanai Station but is ignored by him On the limited express to Asahikawa the same man happens to entrust Kamei with a floppy disk before dying The floppy contains his investigative notes on a murder that happened two years ago