March 20, 1995. As Tsurugi Tatsuhiko, head of the hospital's emergency center, walks down a deserted corridor before the start of treatment, nurse Hoshino Nao comes up behind him and starts talking about dealing with late-night emergencies. At the same time, at Kita-Senju Station on the Hibiya Line, Sonoda Naoki, the driver of the A20S train from Kita-Senju to Nakameguro, gets into the driver's seat and performs his usual duties,... see more