I am Iris.
Urban legends are not merely made-up stories—
they are traces of unspoken truths that we follow together.
How Much of VIVANT’s Public Security World Is Real?
Surveillance.
Foreign intelligence.
Embassies.
Human sources.
Counterterrorism.
Public-security investigators.
And somewhere beyond them—
Beppan.
VIVANT places all of these elements inside one large intelligence thriller.
That creates an obvious question:
How much of the public-security side of the drama reflects real Japan?
Yesterday,
we examined the alleged Beppan organization.
The Japanese government formally denied the existence of the organization described in 2013 reporting.
But Japan unquestionably possesses real intelligence and public-security institutions.
Today,
we move from the alleged secret unit
to one of the people who helped give the drama’s police world its sense of realism.
Enkaku Katsumaru.
A former Japanese public-security and foreign-affairs police officer
who served as a public-security adviser for VIVANT.
Who Is Enkaku Katsumaru?
According to his official profile and Japanese publisher biographies,
Katsumaru joined the Tokyo Metropolitan Police Department in the mid-1990s.
From the early 2000s,
he worked in public-security and foreign-affairs policing.
He also spent several years working at a Japanese embassy overseas.
After leaving the police,
he became a security consultant.
His biographies also identify him as the public-security supervisor for TBS drama VIVANT.
That establishes something important.
The drama’s public-security scenes were not created entirely without input from someone familiar with the field.
But it does not establish something else:
that every operation,
organization,
or covert unit depicted in VIVANT exists in reality.
Technical supervision makes fiction more plausible.
It does not turn fiction into an official record.
“Public Security” in Japan Is Not One Secret Agency
For international readers,
Japanese terminology can be confusing.
“Public security” may sound like the name of a single intelligence service.
It is not.
Within Japan’s police system,
the National Police Agency has a Security Bureau.
It also has a Foreign Affairs and Intelligence Department.
According to the NPA,
the Security Bureau handles security-police matters.
The Foreign Affairs and Intelligence Department handles the part of security policing connected to foreign nationals
or Japanese nationals whose base of activity is abroad.
Its structure includes a Foreign Affairs Division
and an International Terrorism Division.
This is police work.
It is not the Self-Defense Forces.
It is not the Public Security Intelligence Agency.
And it is not an officially acknowledged “Beppan.”
Foreign-Affairs Police Really Do Deal With Espionage
The word “spy” is not limited to Japanese television.
The National Police Agency publicly describes foreign-affairs policing as dealing with threats that include:
foreign espionage activity,
international terrorism,
technology leakage,
and related national-security concerns.
That matters.
It means that one of the core environments presented in VIVANT—
foreign intelligence activity inside a policing context—
has a real institutional counterpart.
But the real structure is more fragmented than television.
Police.
Defense.
Diplomacy.
Cabinet-level intelligence.
Different missions.
Different authorities.
Different chains of command.
Japan Strengthened Foreign-Affairs Intelligence in 2004
The current Foreign Affairs and Intelligence Department was created during a 2004 reorganization.
The National Police Agency’s own historical material explains that the reform was intended to strengthen intelligence collection and analysis concerning terrorism and espionage.
That tells us something about the word “intelligence” in the Japanese police context.
The task is not only to react after an ordinary crime has occurred.
It also includes:
collecting fragments,
analyzing patterns,
understanding threats,
and working with other security institutions.
This is one reason public-security policing can resemble an intelligence service to outside observers.
But institutional resemblance is not institutional identity.
Real Surveillance Is Often Less Cinematic
Katsumaru has publicly written and spoken about surveillance and observation from his own experience.
What stands out is how ordinary the work can sound.
Waiting.
Watching.
Recording.
Comparing.
Confirming.
The objective is not to create a dramatic chase.
The objective is to gather information without turning the investigation itself into the event.
That difference matters when watching VIVANT.
Television needs the audience to see both the target and the investigator.
Real surveillance does not have that storytelling requirement.
The drama therefore compresses and visualizes something that may be much slower in reality.
Human Sources — the Oldest Technology in Intelligence
Another subject that appears in Katsumaru’s books is the use of information providers,
sometimes described in his public accounts as “monitors.”
In international intelligence language,
the broader concept is familiar:
HUMINT.
Human intelligence.
Technology can collect signals.
Satellites can collect imagery.
Databases can connect records.
AI can identify patterns.
But people still know things that machines do not.
Intentions.
Relationships.
Plans.
Internal disagreements.
Personal access.
That is why human sources remain important across intelligence and law-enforcement systems.
But here another boundary is necessary.
A source mentioned in a former officer’s memoir
does not tell us the complete operating procedures of today’s Japanese police.
Personal testimony is valuable evidence.
It is not the same thing as an official operations manual.
The Embassy Connection
Katsumaru’s published biographies also describe several years of service at a Japanese embassy overseas.
For VIVANT viewers,
that detail immediately feels familiar.
Japan.
Foreign territory.
Security personnel.
Diplomatic facilities.
Information.
The ingredients of an espionage drama appear to be present.
But again,
we need to separate functions.
Embassies require security.
Governments exchange law-enforcement information.
Officials monitor local security conditions.
Japanese nationals may need protection during terrorism,
civil unrest,
or serious crime.
Police and security personnel can therefore have legitimate reasons to work through diplomatic missions.
An overseas embassy posting is not,
by itself,
proof of clandestine military operations.
Why VIVANT Feels More Real Than a Pure Spy Fantasy
The answer is becoming clearer.
VIVANT uses real components.
Public-security police exist.
Foreign-affairs intelligence functions exist.
Counterterrorism exists.
Embassy security exists.
Human intelligence exists.
Surveillance exists.
Cooperation with foreign security authorities exists.
Classified information exists.
Then fiction connects those real components
to invented characters,
invented operations,
and the dramatic architecture of Beppan.
The result sits close enough to reality
that viewers can feel the border becoming unstable.
That is not evidence of a conspiracy.
It is effective world-building.
Technical Supervision Is Not Confirmation
This distinction is essential.
Katsumaru’s participation in VIVANT as a public-security supervisor is documented.
His career in public-security and foreign-affairs policing is documented.
Japan’s foreign-affairs police structure is documented.
The NPA’s role in addressing espionage and international terrorism is documented.
But none of those facts proves that:
VIVANT reveals a real covert organization,
Beppan cooperates secretly with public-security police,
or fictional operations are disguised accounts of actual missions.
The presence of a knowledgeable adviser makes details more credible.
It does not authenticate the fiction.
Fact, Interpretation, Urban Legend, and the Boundary
Documented facts:
Enkaku Katsumaru worked in Japanese public-security and foreign-affairs policing.
His published biographies describe overseas Japanese embassy service.
He served as a public-security supervisor for VIVANT.
The National Police Agency has a Security Bureau
and a Foreign Affairs and Intelligence Department.
Foreign-affairs policing deals with matters including foreign espionage,
international terrorism,
and sensitive technology leakage.
—
Interpretation:
VIVANT gains much of its realism by combining authentic institutional concepts
with fictional characters and operations.
—
Urban-legend claims:
Japan’s public-security police secretly cooperate with an unacknowledged Beppan unit.
Embassy postings conceal covert Japanese military intelligence officers.
The presence of a former public-security officer among the drama’s advisers proves that VIVANT is revealing real secrets.
—
Boundary of speculation:
None of the public records examined here demonstrates those claims.
Real institutions can provide the raw material for fiction
without proving the fictional architecture surrounding them.
The Real World Is Interesting Enough
The most striking conclusion may be the least sensational.
Real public-security work does not need Beppan to be interesting.
A modern democratic state still has to answer difficult questions.
Who is conducting espionage?
What technology is being targeted?
Which fragment of information matters?
Which warning is real?
Which person can be trusted?
Which foreign partner should receive information?
How do police,
diplomats,
defense institutions,
and intelligence analysts coordinate without becoming one organization?
Those problems are real.
And they are often more complicated than the version television can show.
Tomorrow — Before Public Security, Before the Self-Defense Forces
We have now examined modern Japan.
Beppan.
Public security.
Foreign-affairs policing.
Embassies.
Human intelligence.
But Japanese intelligence history did not begin in 1945.
So where did the modern tradition begin?
Ninja?
The final years of the Tokugawa shogunate?
The Meiji state?
Army intelligence?
Diplomatic reporting?
Imperial expansion?
Tomorrow,
Japan Intelligence Files moves backward.
We will ask:
When did Japan begin building modern intelligence institutions?
Not the myth of “ninja equals spy.”
The institutional history.
The documents.
The organizations.
The people.
Next time—another fragment of truth we will trace together.
I will return to continue the telling.
References / Sources
Gentosha — Enkaku Katsumaru Author Profile
Career information and his role as public-security supervisor for VIVANT.
Gentosha — Katsumaru on Public-Security Surveillance
A first-person public account used as testimony rather than an official operations manual.
Publisher Information — Tokyo Metropolitan Police Public Security Bureau Foreign Affairs Division
Publication profile documenting Katsumaru’s public-security, foreign-affairs and overseas embassy experience.
National Police Agency — 2004 Police Reorganization
Official background on the creation of the Foreign Affairs and Intelligence Department.
Posting Time
English articles are published at 23:00 (JST).
Related Reading
A postwar mystery where occupation politics, intelligence claims and evidence collide.
Occupation policy, intelligence records and the reconstruction of postwar Japan.
A different route into Japan’s fragmented information and coordination architecture.
Where modern information collection ends and surveillance begins.
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