Monster

NTV · 2004–2005 · 1 Season · 74 Episodes · Ended
AnimeThrillerDramaMystery
88
Fan Heat

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About Monster

Adapted from Naoki Urasawa's acclaimed manga and animated by Madhouse, Monster follows Dr. Kenzo Tenma, a gifted Japanese neurosurgeon working in Germany whose career is on a brilliant upward path. When he defies hospital politics to save the life of a critically wounded young boy instead of a more influential patient, he believes he has simply done the right thing. That single choice, guided by his conviction that every life carries equal worth, quietly sets in motion the central question that haunts the entire series.

Years later, Tenma's principled decision returns to confront him in ways he never imagined. The boy he saved, Johan Liebert, has grown into a calm, articulate, and chillingly intelligent young man at the center of a string of mysterious deaths. Stripped of his comfortable life and wrongly suspected himself, Tenma sets out across Germany and the former Eastern Bloc to find Johan and answer for what his mercy may have unleashed, all while wrestling with the weight of responsibility.

What unfolds is a patient, deeply human cat-and-mouse pursuit rather than a simple chase. Monster is celebrated for its restraint and moral complexity, weaving together memory, identity, and the lingering scars of history as Tenma searches for the truth about Johan and his twin sister. The result is a literary, suspenseful thriller that asks whether some people are beyond saving, and what it costs an ordinary good man to keep believing they are not.

Production Details & Legacy

Monster was created by Naoki Urasawa (manga) and originally aired on NTV, with streaming available on Netflix. The series ran for 1 season and 74 episodes from 2004–2005, establishing itself as a landmark entry in the anime and thriller and drama and mystery genres. Since its conclusion, Monster has continued to attract new viewers through streaming platforms and remains a frequent subject of critical reappraisal and fan discussion.

The series features a rich ensemble of characters that have become iconic within television fandom. TVCeleb profiles 3 key characters from Monster, including Dr. Kenzo Tenma (Hidenobu Kiuchi), Johan Liebert (Nozomu Sasaki), Nina Fortner / Anna Liebert (Mamiko Noto). Each character has inspired dedicated fan communities, extensive analysis, and passionate debate about their motivations, relationships, and story arcs throughout the series.

Monster holds a Fan Heat Score of 88 out of 100 on TVCeleb, reflecting the intensity and passion of its fanbase. This strong score reflects sustained fan engagement and cultural relevance that extends well beyond its original air dates. The series is notable for its psychological thriller, Naoki Urasawa, Madhouse qualities, which have contributed to its enduring appeal and cross-generational viewership.

Characters (3)

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? Frequently Asked Questions

Monster follows Dr. Kenzo Tenma, a neurosurgeon who saves a young boy's life over a more powerful patient. Years later he discovers the boy, Johan Liebert, has become a brilliant and dangerous man, and Tenma sets out to find him and confront the consequences of his choice.

The Monster anime ran from 2004 to 2005 with 74 episodes across a single continuous season. It adapts Naoki Urasawa's manga to its conclusion, so the story is fully complete and self-contained.

Yes. Monster is widely praised as one of anime's finest psychological thrillers, prized for its mature, character-driven storytelling and slow-burn suspense rather than action. Fans of works like Death Note and detective dramas often single it out as a standout.