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Butei Aria and Kinji

Butei (武装探偵 Busou Tantei?) short for "Armed Detective", is a national qualification created to combat the worsening crime rate. The Butei are allowed to bear arms and arrest people. They'll take on any job for money, being the "jack-of-all-trades" to one another as long as it falls within the "Butei Law".

Other than the detective sector, even lawyers and prosecutors are obligated to obtain the arms qualification labelling them Armed Lawyer (武装弁護士 Busou Bengoushi?) and Armed Prosecuter (武装検事 Busou Kenji?)

The training facility is in Tokyo Bay for the unique purpose of training Butei, Tokyo Butei High School nicknamed "Academy Island".


Main article: Japanese Butei Law

Butei are not above the law, however. Much like police offers of our world, the Butei follow a strict charter and operational policies in order to proceed. For Japanese Butei in particular, their most substantial and unique law is their inability to kill a suspect regardless of what they had done. 


According to Kinji, the existence of Butei can trace its roots to Sherlock Holmes himself. While he personally did not oversee the creation of the Butei nor train any students, his efforts laid the foundation for generations of Butei to come.

Despite Holmes hailing from England, it would seem that the overarching headquarters of the Butei is centered in Rome.
Butei Logo

Butei Logo

Butei School LocationsEdit

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