Kaiketsu Jouki Tanteidan

Steam shrouds a city whose engines power nearly every part of life, giving ingenious criminals plenty of cover. Young detective Narutaki takes on cases that overwhelm the police, relying on sharp observation to find the weakness in an opponent's plan.

With the nurse Ling Ling and the giant machine Goriki at his side, he confronts thieves, inventors and masterminds. Protecting the city means uncovering each deception before its own technology can be turned against it.