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Casshern Sins

Casshern Sins

Ruin is the salvation of man and machine

2008–2009Ended1 season24 episodes~24 min/epTV-MAMidcredits score: 51st percentile of all shows

After the murder of Luna, the robot society that rules the planet starts to rust and decay. Death and despair spread through the land like wildfire. The only one unaffected by the affliction that becomes known as "The Ruin" is Luna's assassin, Casshern. Unable to remember if he really triggered this capital sin against the entire mechanized civilization, Casshern embarks on a journey to unravel the mystery that connects him, Luna, and the plague.

Your rating, lists and review

Where to watch

Where can I watch Casshern Sins?

As of October 24, 2026, MovieCove lists Casshern Sins streaming on Crunchyroll and to rent or buy on Prime Video.

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Highlights

What stands out about Casshern Sins?

Casshern Sins earns 3 badges, led by Crowd Pleaser and Haunting.

  • Reception
  • Craft and mood

Reception

Is Casshern Sins worth watching?

Casshern Sins' Midcredits score is the 51st percentile of all shows, from 1.2K ratings across 2 sources. 72% liked it (rated it 7 or higher out of 10).

Midcredits score

How well it was received

51st percentile

Better received than 51% of shows

59th percentile among Animation44th percentile among 2000s
Acclaim (how much people like it)49th
Approval (how many liked it)53rd

Acclaim

Crowd Pleaser: Rating-distribution shape vs the catalog

How much people like it

70 /100

49th percentile of all shows

55th percentile among Animation42nd percentile among 2000s

Rating distribution

A broad spread centered near 7.3 — solid but not unanimous.

Approval

How many liked it

72% liked it

53rd percentile of all shows

62nd percentile among Animation47th percentile among 2000s
72% rated it 7–1028% rated it 1–6

Reach

How many have seen it

66th percentile

1.1K ratings across platforms

59th percentile among Animation60th percentile among 2000s
TMDB popularity, last 37 days to Oct 26Down 5% in 30 days

What reviewers say

Common ground

Both camps agree the series is visually and sonically accomplished, with a strong philosophical premise, but fans find the execution profound while detractors find it muddled.

Fans praised

  • Philosophically heavy meditation on mortality and purpose
  • Memorable, human-feeling characters and strong development
  • Atmospheric, top-notch animation and stirring soundtrack

Detractors panned

  • Plot loses coherence and internal consistency in the back half
  • Character motivations hinge on plot holes, making actions nonsensical
  • Shallow treatment of immortality theme compared to similar works

What stands out

Atmosphere90

Haunting, dreamy post-apocalyptic world-building

OriginalityDivisive85

Unique melancholic take on post-apocalyptic sci-fi, unlike typical mecha

Cinematography85

Striking, soft character designs and desolate, atmospheric backgrounds

Emotional impactDivisive80

Melancholic and moving for fans; emotionally hollow for detractors

CharactersDivisive75

Memorable, sympathetic leads but motivations muddled by plot holes

PacingDivisive55

Slow burn, episodic; takes a few episodes to get going and loses momentum at the end

Plot and storyDivisive40

Coherent first half, breaks down in the second; philosophical questions underdeveloped

EndingDivisive30

Beautiful message for some, but incoherent and unsatisfying for others

Preferred by

US vs non-US

Preferred by Non-US Viewers

Non-US viewers scored it 14 points higher than US viewers.

Episodes

1 season

Season 1 · 2008 · 24 episodes

  • S1E1

    At the End of the World

    Oct 1, 200824 min
  • S1E2

    A World Replete with Death Throes

    Oct 8, 200824 min
  • S1E3

    To the Ends of Agony

    Oct 15, 200824 min
  • S1E4

    The Angel of Ruin

    Oct 22, 200824 min
  • S1E5

    The Man Who Killed the Sun Named Moon

    Oct 29, 200824 min
  • S1E6

    Reunion with Fate

    Nov 5, 200824 min

Watch experience

What is Casshern Sins like to watch?

Conclusions only — categories and positions, no plot detail.

Earnest, dark and intense — an even-paced watch that leaves you haunted.

ToneFeelDemandexact position · filled zone: the category

What it asks of you

What it feels like

Moods
DreadMelancholicTense
Heaviest: throughout
Register
Brooding: Heavy, inward, weather-beaten.Dreamlike · under 1% of shows: Logic gives way to atmosphere and association.
Told as
Three-act: Setup, confrontation, resolution — the default Hollywood shape.SerializedSingle-season story
ToneThe series treats its existential themes with earnest solemnity, using a dreamy visual style and a brooding atmosphere to convey a sense of decay and philosophical melancholy.
The rideThe series maintains a consistent atmosphere of dread and melancholy as the world decays, without shifting drastically between moods.
StructureThe story follows Casshern's linear journey through a decaying world, with occasional flashbacks revealing his past, but the overarching narrative is told in a straightforward three-act structure.
Episode formatThe series tells one continuous story across all 24 episodes, with each episode building on the previous.
Season formatThe series is a single season with a complete narrative that concludes.

How it leaves you

what you carry away
Haunting · 9% of showsBittersweet
Why it leaves you this wayThe series lingers as a haunting meditation on mortality and redemption, with a bittersweet sense of closure.
How it ends · evidence
Bittersweet ending

Story archetype

where it sits among all shows
Monster — 18% of shows. A threat menaces the hero's world and must be defeated.Rags — 3% of shows. A rise from lowliness to fortune, status, or recognition.Quest — 6% of shows. A journey toward a defined objective, with companions and obstacles.Voyage — 2% of shows. Into a strange world and back again, changed.Comedy — 12% of shows. Confusion and cross-purposes resolved into harmony.Tragedy — 4% of shows. A flaw or fixation drives the protagonist to ruin.Rebirth — 7% of shows. A stalled or darkened life reopened and renewed.Mystery — 8% of shows. A question drives the story — who did it, what happened, what is real — until it is answered.No archetype — 40% of showsPredator — 7% of shows. A creature or killer hunts the protagonists (Jaws, Alien).Tyrant — 3% of shows. A human villain holds power over the hero's world (Die Hard).Invasion — 2% of shows. An external force attacks the home or world (Independence Day).Oppressive state — 3% of shows. A government, its agencies or a secret faction inside them is the monster (V for Vendetta).Corporate villainy — 1% of shows. A company or its bosses are the monster (Erin Brockovich).Institutional injustice — 1% of shows. A court, prison, police force, school or church is itself the enemy (Spotlight).Class system — under 1% of shows. The gap between rich and poor, or a rigid hierarchy, is the monster (Parasite).Technology turns — under 1% of shows. Technology people rely on becomes the threat (The Terminator).Inner demon — 1% of shows. The monster is within — addiction, illness, a dark double.Underdog triumph — 2% of shows. Rise through competition or contest (Rocky).Social ascent — 1% of shows. A climb in class or status (Pretty Woman).Fame and fortune — under 1% of shows. An artistic or showbiz rise (A Star Is Born).Rise and fall — under 1% of shows. Wealth or power gained, self lost (Scarface).Hidden worth revealed — under 1% of shows. The protagonist's true value finally recognized.Treasure hunt — 1% of shows. Retrieve an object of value (Raiders of the Lost Ark).Rescue — 2% of shows. Retrieve or save a person (Saving Private Ryan).Mission — 4% of shows. Accomplish or destroy a defined objective (Mission: Impossible).Journey home — under 1% of shows. The goal is getting back (Finding Nemo).Pilgrimage — under 1% of shows. The journey itself transforms; the destination is symbolic.Portal fantasy — under 1% of shows. Transported into another world (The Wizard of Oz).Fish out of water — 1% of shows. Displaced into an unfamiliar social world (Elf).Survival ordeal — under 1% of shows. Trapped in a hostile environment, fighting back (Cast Away).Time displacement — under 1% of shows. Unstuck in time (Back to the Future).Descent — under 1% of shows. A night-journey into an underworld or subculture (After Hours).Romantic comedy — 2% of shows. Lovers kept apart by confusion, united at last.Comedy of errors — 3% of shows. Mistaken identity or misunderstanding drives the plot.Farce — 2% of shows. Escalating absurd chaos and coincidence (The Hangover).Buddy comedy — 1% of shows. A mismatched pair forced together (Rush Hour).Comedy of manners — 2% of shows. Social codes and class satirized (Clueless).Hubris — 1% of shows. Pride or ambition invites the fall (There Will Be Blood).Obsession — under 1% of shows. A fixation consumes the protagonist (Black Swan).Corruption arc — 1% of shows. Step-by-step moral decay (The Godfather).Doomed love — 1% of shows. Love destroyed by circumstance (Brokeback Mountain).Crushed by fate — 1% of shows. Destroyed by forces beyond the protagonist's control.Redemption — 1% of shows. Moral reawakening of a hardened soul (A Christmas Carol).Healing — 3% of shows. Recovery from grief or trauma (Good Will Hunting).Liberation — 2% of shows. Breaking free of a confining life (Room).Second chance — 1% of shows. A stagnant life re-opened to love or purpose (Groundhog Day).Puzzle — 1% of shows. A clue-by-clue puzzle you can try to solve before the reveal (Knives Out, Clue).Investigation — 6% of shows. A long pursuit of the truth that may never be fully solved (Zodiac, Memories of Murder).Enigma — 1% of shows. The mystery is what is real, or what is actually happening (Mulholland Drive).Rebirth
Every story archetype, clockwise from the top
  • Monster 18%: Predator 7% · Tyrant 3% · Invasion 2% · Oppressive state 3% · Corporate villainy 1% · Institutional injustice 1% · Class system under 1% · Technology turns under 1% · Inner demon 1%
  • Rags 3%: Underdog triumph 2% · Social ascent 1% · Fame and fortune under 1% · Rise and fall under 1% · Hidden worth revealed under 1%
  • Quest 6%: Treasure hunt 1% · Rescue 2% · Mission 4% · Journey home under 1% · Pilgrimage under 1%
  • Voyage 2%: Portal fantasy under 1% · Fish out of water 1% · Survival ordeal under 1% · Time displacement under 1% · Descent under 1%
  • Comedy 12%: Romantic comedy 2% · Comedy of errors 3% · Farce 2% · Buddy comedy 1% · Comedy of manners 2%
  • Tragedy 4%: Hubris 1% · Obsession under 1% · Corruption arc 1% · Doomed love 1% · Crushed by fate 1%
  • Rebirth 7% (this title): Redemption 1% (this title) · Healing 3% · Liberation 2% · Second chance 1%
  • Mystery 8%: Puzzle 1% · Investigation 6% · Enigma 1%
  • No archetype 40%

Rebirth: A stalled or darkened life reopened and renewed. · Redemption: Moral reawakening of a hardened soul (A Christmas Carol).

7% of shows fit this archetype

A loose fit — the map only half-holds this one.

Why this archetypeCasshern, an immortal robot blamed for a global decay, wanders a dying world seeking redemption and the truth about his past, making the series a rebirth story about atonement and self-discovery.

What it's about

7 groups · 53 themes
Bonds — 31% of showsSelf — 27% of showsPower — 7% of showsMorality — 11% of showsSurvival — 9% of showsSociety — 10% of showsIdeas — 5% of showsRomantic love — 10% of showsMarriage — 2% of showsFamily bonds — 22% of showsParenthood — 1% of showsFriendship — 18% of showsLoyalty — 7% of showsIdentity — 20% of showsComing of age — 9% of showsAging — under 1% of showsSelf-worth — 7% of showsAmbition — 14% of showsPurpose — 16% of showsMemory — 3% of showsObsession — 2% of shows. A fixation consumes the protagonist (Black Swan).Power — 5% of showsCorruption — 3% of showsGreed — 2% of showsClass — 4% of showsOppression — 2% of showsFreedom — 4% of showsJustice — 14% of showsDuty — 2% of showsRevenge — 1% of showsGuilt — 1% of showsRedemption — 3% of shows. Moral reawakening of a hardened soul (A Christmas Carol).Forgiveness — under 1% of showsSacrifice — 2% of showsBetrayal — 3% of showsDeception — 6% of showsSurvival — 12% of showsWar — 1% of showsViolence — 2% of showsMortality — 2% of showsGrief — 4% of showsTrauma — 5% of showsMental illness — under 1% of showsAddiction — under 1% of showsIllness and disability — under 1% of showsCommunity — 25% of shows. Consequences reach a town, institution or group.Isolation — 3% of showsPrejudice — 2% of showsDisplacement — 1% of showsFaith — 1% of showsTradition vs change — 3% of showsFame — 5% of showsLegacy — 3% of showsFate — 1% of showsFree will — under 1% of showsTruth — 6% of showsHope — 4% of showsNature — 3% of showsArt — 2% of showsTechnology — 1% of showsSelfMortalitySurvival
Every theme, clockwise from the top
  • Bonds 31%: Romantic love 10% · Marriage 2% · Family bonds 22% · Parenthood 1% · Friendship 18% · Loyalty 7%
  • Self 27%: Identity 20% · Coming of age 9% · Aging under 1% · Self-worth 7% · Ambition 14% · Purpose 16% · Memory 3% · Obsession 2%
  • Power 7%: Power 5% · Corruption 3% · Greed 2% · Class 4% · Oppression 2% · Freedom 4%
  • Morality 11%: Justice 14% · Duty 2% · Revenge 1% · Guilt 1% (this title) · Redemption 3% · Forgiveness under 1% · Sacrifice 2% · Betrayal 3% · Deception 6%
  • Survival 9% (this title): Survival 12% · War 1% · Violence 2% · Mortality 2% (this title) · Grief 4% · Trauma 5% · Mental illness under 1% · Addiction under 1% · Illness and disability under 1%
  • Society 10%: Community 25% · Isolation 3% · Prejudice 2% · Displacement 1% · Faith 1% · Tradition vs change 3% · Fame 5% · Legacy 3%
  • Ideas 5%: Fate 1% · Free will under 1% · Truth 6% · Hope 4% (this title) · Nature 3% · Art 2% · Technology 1%

Survival

Mortality · 2% of showsGuilt · 1% of showsHope · 4% of shows
Mourns its theme: Grieves its theme, or what has been lost of it.Global stakes: Consequences reach the world.Single lead
How it treats its themeThe film is about a world decaying from a mysterious ruin and a protagonist held responsible for a death, confronting the frailty of existence.
StanceThe film mourns the mortality and decay of the world, with Casshern at the center of a global tragedy.

The world

Near futureWildernessUrbanScience fiction
Orchestral modernElectronicForeground music · original score
SettingA decaying post-apocalyptic world where robots and humans struggle to survive the 'ruin'.

Content guide

Is Casshern Sins okay for kids?

TV-MA

Casshern Sins is rated TV-MA. As of October 3, 2026, Midcredits content scores put its violence at severe (83/100), sexual content at mild (22/100), language at intense (67/100), drug and alcohol content at moderate (50/100) and frightening material at intense (67/100). None has enough votes to rank yet.

Ratings in 10 other countries
  • UK12
  • Canada18+
  • AustraliaMA 15+
  • Brazil16
  • Denmark15
  • FinlandK16
  • MexicoB-15
  • Netherlands16
  • SwedenFrån 15 år
  • Türkiye13+
Overall
Intense · all five categories
not ranked
Violence & Gore
Severe
too few votes to rank (2 votes)
Sex & Nudity
Mild
too few votes to rank (3 votes)
Profanity
Intense
too few votes to rank (3 votes)
Alcohol & Drugs
Moderate
too few votes to rank (4 votes)
Frightening / Intense
Intense
too few votes to rank (3 votes)

Too few votes to rank this title overall (15 votes across 5 categories; ranking needs 10 in at least three).

Source: Midcredits content scores, 0 (none) to 100 (severe) per category, with each standing ranked against other shows that have them.

What content warnings does Casshern Sins have?

Not screened for content warnings yet.

Cast and crew

Who is in Casshern Sins?

Cast

2 of the cast already had the standing of a top-10% working actor.

Gô Shinomiya
as Robot
Newcomer: A standing when this show came out that sits in the bottom quarter of working actors today.
Youhei Oobayashi
as Robot
Screen debut: No prior film or television role.
Tôru Furuya
as Casshern
Established: A standing when this show came out that a top-10% working actor has today.
Toshiyuki Morikawa
as Dio
Veteran: 15 or more years in, with as much work as the typical long-career actor.
Kazunari Kojima
as Robot
Newcomer: A standing when this show came out that sits in the bottom quarter of working actors today.
Eric Vale
as Casshern
Yûko Minaguchi
as Ringo
Veteran: 15 or more years in, with as much work as the typical long-career actor.
Trina Nishimura
as Luna
Akiko Yajima
as Luna
Established: A standing when this show came out that a top-10% working actor has today.
Keikô Sakai
as Robot
Newcomer: A standing when this show came out that sits in the bottom quarter of working actors today.

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