Mousou Dairinin

Paranoia Agent

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Alternative Titles

Synonyms: Mousou Dairinin
Japanese: 妄想代理人
English: Paranoia Agent
German: Paranoja Agent
Spanish: Paranoia Agent
French: Paranoia Agent
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Feb 3, 2004 to May 18, 2004
Premiered: Winter 2004
Broadcast: Saturdays at 00:00 (JST)
Studios: Madhouse
Source: Original
Genres: Avant GardeAvant Garde, DramaDrama, MysteryMystery, SupernaturalSupernatural, SuspenseSuspense
Themes: DetectiveDetective, PsychologicalPsychological
Duration: 24 min. per ep.
Rating: R+ - Mild Nudity


Score: 7.671 (scored by 157219157,219 users)
1 indicates a weighted score.
Ranked: #12332
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #539
Members: 405,578
Favorites: 5,414

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Ranked #1233Popularity #539Members 405,578
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Episodes: /13
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The infamous Shounen Bat (Lil' Slugger) is terrorizing the residents of Musashino City. Flying around on his rollerblades and beating people down with a golden baseball bat, the assailant seems impossible to catch—much less understand. His first victim, the well-known yet timid character designer Tsukiko Sagi, is suspected of orchestrating the attacks. Believed only by her anthropomorphic pink stuffed animal, Maromi, Tsukiko is just one of Shounen Bat's many victims.

As Shounen Bat continues his relentless assault on the town, detectives Keiichi Ikari and Mitsuhiro Maniwa begin to investigate the identity of the attacker. However, more and more people fall victim to the notorious golden bat, and news of the assailant begins circulating around the town. Paranoia starts to set in as chilling rumors spread amongst adults and children alike.

Will the two detectives be able to unravel the truth behind Shounen Bat, or will the paranoia get to them first?

[Written by MAL Rewrite]


The anime was awarded the Silver Prize in Animation Jury Award and Audience Award at Fantasia International Film Festival 2004 in Montreal, Canada.

Episode Videos

Characters & Voice Actors


Cook, Justin
Tanaka, Shinsaku
Assistant Producer
Kon, Satoshi
Director, Storyboard, Original Creator
Mima, Masafumi
Sound Director


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Yume no Shima Shinen Kouen/Dream Island Obsessional Park (夢の島思念公園)" by Susumu Hirasawa

Ending Theme

"Shiroi Oka - Maromi no Theme" by Susumu Hirasawa


Apr 11, 2023
I watched paranoia agent as a kid and just like welcome to the nhk wasnt sure what was happening or going on. a couple of rewatches years later and it still holds up as a great anime. The storytelling was masterful, with each episode adding to the overall mystery of the story while also standing on its own as a standalone episode. The animation and sound design were top-notch, creating a creepy and unsettling atmosphere that perfectly suited the themes of the show. If you're a fan of psychological thrillers or anthology series, I highly recommend giving Paranoia Agent a watch. Satoshi Kon is ...
Aug 20, 2023
Mixed Feelings
Why do I do this? I recently covered Ghost Hound, a title I found very hard to review, and here I am writing about Paranoia Agent, an anime that I find even harder to talk about. Sigh

Mousou Dairinin is a series that works way more on a conceptual level than at its execution, and it’s also the definition of a series for an acquired taste, as its writing is not very good for the hardest to please most critical viewers, and its narrative is almost unapproachable for a casual audience that just wants to have a good time. Also, being a work with Satoshi Kon ...
Feb 11, 2023
Mousou Dairinin, also known as "Paranoia Agent," is a 2004 anime series about reality and the consequences of fear. The plot revolves around a series of incidents in Tokyo that are linked by the presence of a mysterious figure known as Lil' Slugger, who is suspected of being responsible for a string of assaults.

The animation is one-of-a-kind, with a distinct and memorable style. The sound design is also notable, with a haunting score that adds to the story's tension.

The characters are well-developed, with motivations that are easily understood and supported. The interactions between the various characters are especially interesting as they try to uncover the ...

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