A wave of suicides among ability users, each preceded by a strange fog, pulls the Armed Detective Agency into an investigation of Tatsuhiko Shibusawa, a collector of abilities suspected of causing them. Atsushi Nakajima takes the case as the fog reaches Yokohama and threatens to swallow the city whole, with Osamu Dazai nowhere on the agency's side of the fight. This manga adapts the Dead Apple film, condensing its story into print.