Once again, a dangerous criminal is on the loose, and they seem to have robbed a local bank in Yokohama. The Port Mafia and Armed Detective Agency have both been looking for the culprit. Ranpo, of course, figured out that the criminal was a gifted being and a powerful one at that, but he was stumped when trying to figure out who it was which was a surprise due to his unique ability. Read the story to find out who the killer is with the help of Akutagawa and Atsushi... maybe a bit of romance will appear along the way, but who knows if they can even stay alive long enough?