Steam Detectives: Case One (Region 1 Import DVD)

In a city shrouded in steam, criminals learn to take advantage of the obscuring fog to aid their wicked schemes. Fortunately, a boy genius named Narutaki, along with his assistants, nurse Ling-Ling and her megamaton Goriki, has taken it upon himself to make sure these criminals are stopped. The son of a slain detective, Narutaki has made it his life's work to protect Steam City from the evils of the criminal underworld.