"The streets here are continually enveloped in a white mist. Steam comes out of everywhere, covering the streets and buildings. Because coal was the only fuel available, this city developed an incredibly advanced steam technology. Unfortunately, villains take advantage of this white fog to commit countless crimes and continually baffle the police. At night, the white mist shrouds the darkness, intimidating everyone. People call this city enveloped in mist...Steam City."
The story focuses on a boy named
Narutaki, who had been orphaned by villains years ago. With his butler
Kawakubo, he continues his family's tradition by becoming a detective, using a special gun that can fire special projectiles with the use of various attachments. The crime-fighting team is completed with
Inspector Yagami, a nurse named
Ling-Ling, and her
megamaton Goriki. Working against Narutaki and his team is the
Tuxedo kamen-lookalike
Lu Bread with Ling-Ling's sister
Lang-Lang,
Knight of Phantom, and many other villains looking to destroy
Steam City.
The
manga is by
Kia Asamiya, creator of
Silent Möbius and
Martian Successor Nadesico and an
inbetweener on
Inspector Gadget, and the
anime is by
Xebec.
Most info from www.ex.org, Inspector Gadget connection pointed out by IanOji