|This article is about a/an location in Kamen Rider W.|
The Narumi Detective Agency (鳴海探偵事務所 Narumi Tantei Jimusho) is an agency founded by Sokichi Narumi sometime before becoming Kamen Rider Skull.
The agency solves cases usually involving Dopant crime waves. It is even allied with the Futo Police Department during some cases. Akiko created a website to advertise the agency, which looked very girly and clashed with the idea of being a detective agency site; it is unknown if changes to said site were made.
Super Hero Taihen
- "There is an answer to every mystery."
- ―Narutaki's line in the Spin-off[src]
- "However, it will be a mature one."
- ―Urataros' line in the Spin-off[src]
In the net movie series spin-off of Super Hero Taisen, Kamen Rider × Super Sentai: Super Hero Taihen – Who’s the culprit?!, which primarily features the casts of Kamen Rider Fourze and Tokumei Sentai Go-Busters, a different Narumi Detective Agency exists, featuring Narutaki, Urataros, and Gai Ikari as Gokai Silver. The punch line is that the name "Narumi" (鳴海) was derived from "Naru" in Narutaki's name (鳴滝), and "umi" from Urataros' sea (海) affinity. The series deals with questions that are related to Kamen Riders and Super Sentai, but due to the nature of the series being "spin-offs", the discussed issues are still debatable.