Under the leadership of Masumi Mizusawa and Maho Kiryu, Medical Examiner Japan (MEJ) begins operations, but the team is quickly overwhelmed by paperwork and unable to perform autopsies as expected; meanwhile, Honda reunites with his old friend Hirono, who is later found dead under mysterious circumstances, and as investigators determine he died from a fall despite no visible place to fall from, the team sets out to uncover the truth behind the impossible case.