Plot Explained Spoilers guaranteed!
Plot Explained

Browse by genre

Detective Conan: Black Iron Submarine (2023) movie poster

Characters & Themes

Detective Conan: Black Iron Submarine (2023) Characters, Setting & Themes Explained

Release, runtime and language
2023 · 110 mins · Japanese
Loading streaming availability…
Directed by
Yuzuru Tachikawa
Starring
Minami Takayama, Megumi Hayashibara, Mami Koyama, Hiroshi Kamiya, Jun'ichi Suwabe, Ayumu Murase

Engineers from across the globe convene at the Interpol marine facility, Pacific Buoy, located off the coast of Tokyo, to launch a revolutionary global law enforcement camera system. Detective Conan and his friends, including Kogoro, Ran, Agasa, and Haibara, join them on Hachijo-jima island, invited by Sonoko. However, Conan receives a concerning message from Subaru about a Europol agent’s murder. As the group travels to the island, Conan discovers that the Black Organization is attempting to kidnap a female engineer and steal crucial data from her USB drive, putting everyone in danger.

On this page (8)
  1. 1 Where to watch
  2. 2 Characters explained (12)
  3. 3 Where & when it takes place
  4. 4 Themes & meaning (3)
  5. 5 Character & meaning questions
  6. 6 Movie threads
  7. 7 Movies like Detective Conan: Black Iron Submarine
  8. 8 Every angle
Loading streaming availability…

12 main characters · contains spoilers

Detective Conan: Black Iron Submarine Characters Explained: Who Is Who

The main characters of Detective Conan: Black Iron Submarine (2023), heroes and villains: what drives them, how they change over the course of the story and what each of them reveals about the film's bigger ideas.

  • Conan Edogawa (Minami Takayama)

    A brilliant young detective who threads the investigation across Frankfurt, Hachijo-jima, and the Pacific Buoy. He pieces together clues, coordinates with Dr. Agasa and Kogoro, and relies on sharp deduction to outmaneuver dangerous foes. His resolve drives the pursuit of the Black Organization and the protection of Haibara.

    • 🕵️ Detective
    • 🧠 Protagonist
  • Ai Haibara (Megumi Hayashibara)

    Former Shiho Miyano, now allied with Conan. Targeted by the Black Organization, she fights to stay safe and to help dismantle their plots. Her presence deepens the mystery around Shiho Miyano’s identity and the All-Age Recognition project.

    • 🧪 Scientist
    • 🧭 Ally
  • Vermouth (Mami Koyama)

    A sophisticated Black Organization operative who orchestrates key manipulations from the shadows. She orchestrates the system flaw and manipulates footage to mislead investigators, adding psychological complexity to the confrontation.

    • 🗡️ Spy
    • 🎭 Mastermind
  • Kir (Kotono Mitsuishi)

    A Black Organization operative who assists in tracking Haibara and coordinating operations. She demonstrates agility and a cool-headed approach, serving as a counterpoint to Conan’s team.

    • 🗡️ Assassin
    • 🤝 Ally
  • Pinga (Ayumu Murase)

    One of the Organization’s agents; associated with the Grace alias. Involved in kidnapping Naomi Argento and pursuing Haibara, her actions contribute to the film’s tension and ultimate confrontation; her fate intertwines with the submarine crisis.

    • 🕵️ Agent
    • 🗡️ Operative
  • Naomi Argento (Atsumi Tanezaki)

    A European Parliament member’s daughter central to the All-Age Recognition project. Her kidnapping heightens political stakes and presses for the system’s control. Her position amplifies the ethical and security dilemmas at the heart of the plot.

    • 🎯 Target
    • 🧠 Tech-related
  • Leonhardt (Jun'ichi Suwabe)

    An engineer at the Pacific Buoy project who maintains the surveillance framework. He is murdered, and a confession hints at a backdoor vulnerability within the system, revealing internal corruption.

    • 🧠 Engineer
    • 🕳️ Backdoor
  • Subaru Okiya (Ryotaro Okiayu)

    A mysterious figure who provides crucial intelligence about the Europol incident and guides Conan through the Interpol facility. His presence hints at deeper connections within the espionage world and serves as a strategic ally.

    • 🕵️‍♂️ Ally
    • 🗝️ Mysterious
  • Kogoro Mouri (Rikiya Koyama)

    The detective father who anchors some on-site investigation at the resort, providing a contrast to Conan’s sharper deductions while supporting the team’s efforts.

    • 🕵️ Detective
    • 🧭 Support
  • Ran Mouri (Wakana Yamazaki)

    Conan's ally and friend who accompanies the group to the island and adds emotional stakes to the investigation. Her presence helps ground the story in familiar personal ties.

    • 👭 Ally
    • 🧭 Humanizing
  • Shuichi Akai (Shuichi Ikeda)

    A skilled operative whose actions provide decisive momentum against the Black Organization aboard the submerged pursuit. His interventions bring tactical precision to the confrontation with the Organization.

    • 🧠 Strategist
    • 🗡️ Combat
  • Jodie Starling (Miyuki Ichijou)

    A key FBI ally whose intelligence supports cross-border cooperation against the Black Organization. Her involvement adds to the international scope and coordination of efforts.

    • 🕵️‍♀️ Ally
    • 🌍 International

Last updated: October 01, 2025 at 09:48

Was this helpful?

Setting

Where and When Does Detective Conan: Black Iron Submarine Take Place?

The setting of Detective Conan: Black Iron Submarine (2023): the year and time period, the places and locations, and how they shape the characters, the mood and the tension of the story.

Time period

Modern day

The events take place in contemporary times, leveraging current surveillance tech and international agencies like Europol and Interpol. The plot centers on a cutting-edge yet flawed system (All-Age Recognition) and a high-stakes security crisis. The timeline unfolds over a few tense days of pursuit, infiltration, and confrontation rather than a long historical arc.

Location

Frankfurt, Hachijo-jima, Pacific Buoy

The story spans a European city, a remote Japanese island resort, and a high-security underwater lab. It threads the pursuit from Frankfurt to the Pacific Buoy, showcasing a global espionage backdrop. Key scenes unfold at an Interpol underwater facility, highlighting advanced surveillance networks and cross-border cooperation. The settings emphasize high-tech security, tension, and international intrigue.

  • ❄️ Modern setting
  • 🗺️ International locales
  • 🏝️ Island resort
  • 🌊 Underwater facility

Last updated: October 01, 2025 at 09:48

Was this helpful?

3 major themes

Detective Conan: Black Iron Submarine Meaning: Themes & Message Explained

What is Detective Conan: Black Iron Submarine (2023) really about? The emotional, social and philosophical themes the film keeps returning to, its symbolism and the message beneath the surface.

  • Surveillance

    The All-Age Recognition system embodies a futuristic take on facial recognition and AI reconstruction. Its results can be manipulated or misinterpreted, revealing how technology can mislead as much as it informs. Vermouth and Gin exploit perceived truths to steer events, underscoring privacy and trust issues in a world of global espionage. The plot uses surveillance as both a tool and a weapon, driving the conflict and moral questions.

  • Identity

    AI-based identity tools attempt to map faces to individuals across borders, but the story shows their fragility when appearances can be deceived. The possibility of misidentification undermines the reliability of digital identity in a high-stakes chase. Haibara’s true identity becomes a central axis, tying personal history to the security project. The film uses technology to question what it means to be who you appear to be.

  • Espionage

    A web of covert operations drives the action, with the Black Organization infiltrating the Pacific Buoy and orchestrating kidnappings. The plan to stage a system flaw and the submarine confrontation escalate the crisis toward a climactic showdown. Conan and allies must outmaneuver seasoned operatives like Vermouth and Kir while protecting Haibara. The narrative centers on loyalty, deception, and the high-stakes game of international espionage.

Last updated: October 01, 2025 at 09:48

Was this helpful?

Character & theme questions

Detective Conan: Black Iron Submarine Characters & Meaning: Your Questions Answered

The questions people ask about Detective Conan: Black Iron Submarine (2023): who the characters really are, their relationships, what the symbols mean, where it takes place and what the movie is really about. Each answer contains spoilers.

Q1

What is Pacific Buoy in the movie?

Pacific Buoy is a high-security Interpol underwater facility located off the coast of Tokyo. It serves as the base for launching a revolutionary global law enforcement camera system called All-Age Recognition, which uses AI facial recognition to track individuals across borders. The facility represents cutting-edge international surveillance technology and becomes the primary battleground between Conan and the Black Organization.

  • pacific buoy
  • interpol
  • underwater facility
  • surveillance
  • global camera system
Q2

Where is Hachijo-jima and why is it important?

Hachijo-jima is a remote Japanese island resort where Conan and his friends are invited by Sonoko. It serves as the initial gathering point for the group before the stakes escalate. The island setting provides a contrast between the seemingly peaceful vacation atmosphere and the dangerous international espionage plot that unfolds.

  • hachijo-jima
  • island resort
  • tokyo
  • japanese location
Q3

What is the All-Age Recognition system?

The All-Age Recognition system is a futuristic AI-based facial recognition technology designed to map faces to individuals across borders. It forms the core of the movie's technological mystery, as it can be manipulated or misinterpreted. The system becomes both a target for the Black Organization and a plot device that raises questions about privacy, digital identity, and the reliability of surveillance technology.

  • all-age recognition
  • ai
  • facial recognition
  • surveillance technology
  • identity system
Q4

What are the main themes of the movie?

The film explores three interconnected themes: surveillance (the All-Age Recognition system as both tool and weapon), identity (how technology questions what it means to be who you appear to be, especially through Haibara's situation), and espionage (the Black Organization's covert operations and international intrigue). These themes weave together a narrative about trust, deception, and the ethics of global surveillance.

  • surveillance
  • identity
  • espionage
  • themes
  • technology
  • privacy
Q5

Who is Ai Haibara in the story?

Ai Haibara is the former Shiho Miyano, a scientist who defected from the Black Organization. She now lives under an alias and is allied with Conan, constantly targeted by her former colleagues. Her true identity becomes central to the plot, particularly in connection with the All-Age Recognition project. Her past and ongoing danger drive much of the conflict.

  • ai haibara
  • shiho miyano
  • black organization
  • scientist
  • target
Q6

Who is Vermouth and what is her role?

Vermouth is a sophisticated operative of the Black Organization who orchestrates key manipulations from the shadows. She orchestrates the system flaw in the All-Age Recognition project and manipulates footage to mislead investigators. Her mysterious assistance in the ending leaves lingering ambiguity about her true allegiances.

  • vermouth
  • black organization
  • operative
  • manipulator
  • espionage
Q7

What is the Black Organization in this movie?

The Black Organization is a powerful criminal syndicate attempting to kidnap a female engineer and steal crucial data from her USB drive. They infiltrate the Pacific Buoy facility and orchestrate a high-stakes kidnapping of Naomi Argento. Their plan involves staging a system flaw and orchestrating a submarine confrontation, making them the primary antagonistic force driving the thriller plot.

  • black organization
  • criminals
  • syndicate
  • kidnapping
  • espionage
  • villains
Q8

When does the movie take place?

The events take place in modern day, leveraging current surveillance technology and international agencies like Europol and Interpol. The timeline unfolds over a few tense days of pursuit, infiltration, and confrontation, rather than spanning a long historical period.

  • modern day
  • contemporary
  • time period
  • timeline
Q9

Who is Naomi Argento and why is she important?

Naomi Argento is the daughter of a European Parliament member and is central to the All-Age Recognition project. Her kidnapping by the Black Organization heightens the political stakes and amplifies the ethical and security dilemmas at the heart of the plot, adding a dimension of international political pressure to the technology dispute.

  • naomi argento
  • european parliament
  • kidnapping
  • all-age recognition
  • political stakes
Q10

What is Conan Edogawa's role in the movie?

Conan Edogawa is the brilliant young detective who threads the investigation across Frankfurt, Hachijo-jima, and the Pacific Buoy facility. He pieces together clues, coordinates with Dr. Agasa and Kogoro, and relies on sharp deduction to outmaneuver dangerous foes. His resolve drives the pursuit of the Black Organization and the protection of Haibara throughout the film.

  • conan edogawa
  • detective
  • investigation
  • protagonist
  • deduction

Movie threads

More Movies Like Detective Conan: Black Iron Submarine, by Mood & Story

Curated lists built around what makes Detective Conan: Black Iron Submarine tick: the same mood, the same kind of story or the same emotional payoff. Each list explains why these movies belong together.

Techno-Thriller Movies like Detective Conan: Black Iron Submarine

Rapid-fire stories where advanced technology becomes the key to survival or destruction. If you loved the high-tech suspense of Detective Conan: Black Iron Submarine, explore more movies like it. These films feature tense races against time involving advanced technology, shadowy organizations, and heroes fighting to prevent a catastrophic outcome.

  • techno-thriller
  • high-stakes
  • urgent
  • suspenseful
  • action-packed
  • conspiracy
  • Tone: tense, urgent
  • Pacing: fast, relentless
Why these movies?

The story pattern: These narratives typically begin with the introduction of a powerful new technology that immediately becomes a target. The protagonist, often an investigator or specialist, must uncover a conspiracy and outmaneuver a formidable antagonist in a series of escalating, action-packed sequences set in high-tech environments.

Why they belong together: Movies in this thread are grouped by their shared focus on technology as a central plot driver, combined with a fast pace, high intensity, and a tense tone that creates a consistent sense of urgency and danger.

Claustrophobic Thrillers similar to Detective Conan: Black Iron Submarine

Thrillers where characters are trapped in a confined space with hidden enemies and a looming threat. Fans of the confined, high-pressure setting in Detective Conan: Black Iron Submarine will enjoy these similar movies. They feature isolated locations like underwater bases, remote islands, or sealed facilities where characters must expose a conspiracy to survive.

  • claustrophobic
  • conspiracy
  • deceptive
  • anxious
  • isolated
  • suspenseful
  • Tone: tense, deceptive, anxious
  • Pacing: fast, suspenseful
Why these movies?

The story pattern: The narrative pattern involves a group of people entering a seemingly secure but isolated location. A central mystery or threat is revealed, turning the environment into a trap. The plot focuses on uncovering hidden allegiances, surviving attacks from within, and finding a way to escape the密闭空间 while resolving the larger conspiracy.

Why they belong together: These movies share a specific atmospheric blend: a tense and deceptive mood driven by a confined setting, a complex plot involving hidden identities and agendas, and a constant feeling of being trapped with the enemy.

If you liked this

Movies Like Detective Conan: Black Iron Submarine

Similar movies to Detective Conan: Black Iron Submarine: the same genre, themes or kind of story. Each one comes with its own plot summary, timeline and ending explained.

Browse all movie summaries

Every angle

Detective Conan: Black Iron Submarine (2023) Explained: Plot, Timeline & Characters

Everything about Detective Conan: Black Iron Submarine in one place: what happens in the plot summary, the timeline in chronological order, the characters and meaning and a spoiler-free summary. What's After the Movie adds the cast, box office and post-credit scenes.

Coming soon on iOS and Android

The Plot Explained Movie Summary App

Plot summaries, endings explained and timelines on your phone. Catch up on any movie in minutes, save your favorites and never miss a twist again.

Be the first to know when we launch. Your email stays private, always.

Learn more about the app