Plot
Steam City is a place where the only fuel source isCharacters
; : :Son of the greatest detective in Steam City, Narutaki takes up the mantle after his parents' death. He is considered by some a child genius, but an annoyance by others. He is compassionate, and sometimes naive in his attitude towards both his citizen charges and the villains he pursues. Narutaki loves Steam City and vows to protect it from danger. His investigation style is similar to Sherlock Holmes. He uses a multi-purpose gun and various tools to aid his investigations. Despite his young age, he drinks tea and has an eye for pretty ladies. He also has a passion for toy models, and is described as "precocious" by Ling Ling. ; : :Ling Ling is the youngest daughter of Dr. Hsu and the writer Feifer. A young nurse who owns the Megamaton, Goriki. She and Goriki become assistants of Narutaki after being tricked into helping Night Phantom. Much of her past is a mystery. She helps Narutaki in his investigations and looks after his health. Ling Ling is sensitive and caring to others but she can rise to the occasion. Her overly sentimental nature does put her in danger when she throws herself into things. She volunteers at the local hospitals since they are often understaffed. It is hinted in the manga that she may have feelings for Narutaki. ; : :The Narutaki family butler and mechanic, he is the primary caretaker of Narutaki. Kawakubo also repairs Goriki. Kawakubo was the butler for Narutaki's father and is familiar with the older cases. He assists Narutaki in his lab work and research. He also manages Narutaki's affairs and looks after the house and its occupants. ; : :The last Megamaton built by Dr. Hsu, Goriki means "great strength". According to the last wishes of the doctor, Dr. Hsu's brain is implanted inside Goriki's body. Unlike most Megamatons, Goriki does not need to be remote controlled. He provides the brunt of Narutaki Detective Agency's strength. He is capable of understanding speech and appears to respond to Ling Ling's emotions. Goriki is always ready to battle despite the reluctance of Ling Ling. ; : :His true identity is Dr. Hart, a rival scientist of Dr. Hsu. He considers Dr. Hsu his enemy, and wishes to prove himself as the best. The pair disagreed on how Megamaton technology should be used. He often attacks Steam City with advanced Megamatons. He aims to rule the world with the aid of his Megamatons. ; : :A detective with the Steam City Police Department, he is a good detective but can be a little over the top. He resents Narutaki's involvement in the cases. He is also very open about his love for Ling Ling, which is not returned. ; : :Chief Inspector Yagami is Narutaki’s most trusted friend in the police force. He is not afraid of asking help from Narutaki, he also provides Narutaki with information pertaining to cases. He likes to think things through when solving a case. ; : :"Phantom Knight" in the manga. A mysterious villain who has a past and a grudge with Narutaki and Narutaki's father. His father, the previous Phantom Knight, killed Narutaki's parents. He hates Steam City and vows to destroy it so he can avenge his father. Unlike most villains, he often creates elaborate plans to trick and kill Narutaki. His design and personality draw parallels to Batman. ; : :A female thief who loves precious gems and jewellery. She often uses trickery and illusion to steal her prizes. She is very adept at disguising herself, which is a useful skill used for cat burglary. She also dislikes being called 'old'. ;Machine Baron : :A mechanicMinor Characters
;Pasta and Doria :Crimson Scorpion's henchmen, they are more cautious than their boss but follow her orders without question. ;Anna Highend :A police officer who transferred from Electrical City so she could meet Narutaki. She is tall and good looking. ;Dr. Mayerd :A scientist in energy technology, he repairs and maintains Goriki at his factory. ;Soichiro Narutaki :Narutaki's father, and the previous owner of Narutaki Detective Agency. He is Narutaki's role model and was considered the best detective in Steam City. He and his wife lost their lives during an encounter with the original Night Phantom. ;Wolf and Carlos :Two criminals from Techland that sometimes appear in Steam City to steal blueprints of new technologies to advance Techland's own power. Their well thought-out plans are generally ruined either by Narutaki or at times by their own carelessness. ;Teng Shing :A giant hamster that Ling Ling brought home one day. It understands human speech and is adept at overpowering humans.External links
* {{Xebec 1994 manga 1998 anime television series debuts 2000 Japanese novels ADV Films Kia Asamiya Light novels Seinen manga Shōnen manga Shueisha franchises Shueisha manga Sunrise (company) TV Tokyo original programming Viz Media manga Xebec (studio)