Directed by

Takashi Miike
Made by

Fuji Television Network
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Explore all characters from The Mole Song: Undercover Agent Reiji (2013). Get detailed profiles with their roles, arcs, and key relationships explained.
Reiji Kikukawa (Toma Ikuta)
A sharp, calm undercover agent who navigates a web of danger with precision. He maintains a composed exterior while wrestling with moral ambiguities and the toll of living a double life. His determination to uncover the truth clashes with the demands of his mission, creating ongoing internal conflict.
Discover the main themes in The Mole Song: Undercover Agent Reiji (2013). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
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Undercover
An undercover agent infiltrates a hidden world, balancing secrecy and risk as loyalties are tested. The narrative centers on disguise, deception, and the personal cost of living a double life. The tension arises from maintaining the cover while pursuing truth and justice. The theme explores how identity can be shaped by circumstance and the consequences of lying.
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Loyalty & Betrayal
Characters confront conflicting loyalties as alliances shift under pressure. Betrayal threatens both personal relationships and mission objectives. The story examines how trust is earned, tested, and sometimes broken in a dangerous underworld. Moral choices drive the plot, revealing what characters are willing to sacrifice.

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In a neon‑lit underworld where the line between duty and deception blurs, the police force grapples with a daring experiment: placing one of its own inside the ranks of a formidable yakuza clan. The city’s bustling streets pulse with hidden hierarchies, and the looming presence of the Sukiya‑kai reminds everyone that power often wears a smile as sharp as a blade.
At the heart of this stratagem is Reiji Kikukawa, a freshly minted constable whose academic record sits at the very bottom of his class. Despite his rocky start, he possesses an unwavering sense of justice that convinces his superiors to entrust him with an impossible task. When an unexpected dismissal removes him from the front lines, it is revealed to be a calculated ruse, sending him deep undercover to infiltrate the criminal syndicate he once vowed to dismantle.
Guiding him from the shadows is Kazumi Akagiri, a seasoned special agent whose experience balances Reiji’s raw enthusiasm with a pragmatic view of the stakes involved. Their partnership sets the tone for a story that mixes gritty realism with off‑beat humor, as Reiji must navigate a world where loyalty is bought, betrayals are whispered, and every handshake could hide a trap. The film’s atmosphere blends the flamboyant excess of yakuza culture with the procedural tension of police work, creating a uniquely stylized playground for clash and comedy.
As Reiji steps further into the labyrinthine streets and smoky lounges of the underworld, the audience is invited to wonder how far a man can go while keeping his moral compass intact. The tension between his earnest idealism and the seductive allure of the gang’s code promises a roller‑coaster of wry observations, daring escapades, and the constant question of whether he will emerge as a hero, a pawn, or something altogether unexpected.
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