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Hiroshi Seko

Hiroshi Seko

Writer · Born January 1, 1981 (45) · Nagoya, Aichi, Japan

Hiroshi Seko (瀬古 浩司, Seko Hiroshi) is a Japanese animation-oriented screenwriter.

Biography from TMDB.

Born
January 1, 1981 (45)
From
Nagoya, Aichi, Japan
Works as
Writer
Titles
42 on MovieCove · 51 credits in all
Links
IMDb (opens in a new tab)TMDB (opens in a new tab)Wikidata (opens in a new tab)

Known for

TMDB popularity, last 155 days to Oct 26Up 10% in 30 days

What are Hiroshi Seko's films like?

Across their 19 MovieCove titles with a thematic analysis, their films lean Self and Survival.

Themes

share of theme weight
Self
33%
Survival
21%
Bonds
18%
Power
14%
Morality
10%
Ideas
3%
Society
2%
Identity9 titles, browse their movies with this themeSurvival5 titles, browse their movies with this themeFriendship6 titles, browse their movies with this themePurpose3 titles, browse their movies with this themePower3 titles, browse their movies with this themeSacrifice3 titles, browse their movies with this themeRomantic love3 titles, browse their movies with this themeGrief2 titles, browse their movies with this theme

What they feel like to watch

their average across 7 films
ToneFeelDemandtheir average · filled zone: the category
Dark: How heavy the subject matter and outlook get. Browse their dark movies.
Tone · Weight
lightdark

Light 0 · Serious 3 · Dark 4

Heightened: How far its world departs from everyday reality. Browse their heightened movies.
Tone · Style
naturalisticheightened

Grounded 0 · Stylized 3 · Heightened 4

Intense: How hard the emotional peaks hit while you watch. Browse their intense movies.
Feel · Intensity
gentleintense

Gentle 0 · Charged 0 · Intense 7

Shifting: How much it swings between very different feelings. Browse their shifting movies.
Feel · Swings
steadyswings

Steady 1 · Shifting 6 · Whiplash 0

Straight-faced: How much of the runtime is played for laughs. Browse their straight-faced movies.
Feel · Humor
noneconstant

Straight-faced 6 · Some laughs 1 · Funny 0

Even-paced: How fast it moves from scene to scene. Browse their even-paced movies.
Demand · Pace
slowrelentless

Slow burn 1 · Even-paced 4 · Relentless 2

Engaged: How much focus it asks of you — look away and lose the thread? Browse their engaged movies.
Demand · Attention
casualfull focus

Casual 0 · Engaged 4 · Full focus 3

Open-ended: How much is left for you to interpret. Browse their open-ended movies.
Demand · Resolution
resolvedambiguous

A split, not a type: Resolved 5 · Open-ended 0 · Ambiguous 2

Moods and endings

endings are an aggregate; no title is named

Dominant moods · mentions across their titles

Tense
15
Thrilling
10
Melancholic
8
Dread
6
Contemplative
4
Other
10

How their films linger

Hopeful11 titles, browse their movies with this aftertasteBittersweet5 titles, browse their movies with this aftertasteFun5 titles, browse their movies with this aftertasteThought-provoking5 titles, browse their movies with this aftertasteHaunting3 titles, browse their movies with this aftertasteRousing3 titles, browse their movies with this aftertaste

How their films end · 4 with a twist

  • Happy1
  • Bittersweet10
  • Tragic1
  • Ambiguous7

AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.

Where can I watch Hiroshi Seko's films?

As of October 24, 2026, 34 of their 42 MovieCove titles stream on a subscription or free service, most on Crunchyroll (24).

Also on these channels

Subscription and free streaming for Hiroshi Seko's titles on MovieCove; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.

Filmography

51 credits, 42 with a MovieCove page.

  • Crunchyroll Anime Nights - Mob Psycho 100 (not in the MovieCove catalog yet)(2026)

    Screenplay · Series Composition

  • Thunder 3(2026)

    Show 12 episodes · Screenplay · Series Composition

    Midcredits score: 24th percentile of all shows

  • Witch Hat Atelier (not in the MovieCove catalog yet)(2026)

    Series Composition

  • Witch Hat Atelier(2026)

    Show 13 episodes · Series Composition · Writer

    Midcredits score: 98th percentile of all shows

  • Rooster Fighter(2026)

    Show 1 episode · Script

    Midcredits score: 73rd percentile of all shows

  • Jujutsu Kaisen: Execution(2025)

    Screenplay · Series Composition

    Midcredits score: 75th percentile of all films

  • Chainsaw Man - The Movie: Reze Arc(2025)

    Screenplay

    Midcredits score: 99th percentile of all films

  • Gachiakuta(2025)

    Show 24 episodes · Series Composition · Writer

    Midcredits score: 95th percentile of all shows

  • DAN DA DAN: Evil Eye (not in the MovieCove catalog yet)(2025)

    Series Composition · Writer

  • Jujutsu Kaisen: Hidden Inventory / Premature Death - The Movie(2025)

    Series Composition · Writer

    Midcredits score: 99th percentile of all films

  • Dandadan(2024)

    Show 24 episodes · Series Composition · Writer

    Midcredits score: 95th percentile of all shows

  • DAN DA DAN: First Encounter (not in the MovieCove catalog yet)(2024)

    Series Composition · Writer

  • Wind Breaker(2024)

    Show 25 episodes · Series Composition · Writer

    Midcredits score: 76th percentile of all shows

  • Attack on Titan: The Last Attack(2024)

    Screenplay

    Midcredits score: 99th percentile of all films

  • Gamera: Rebirth(2023)

    Show 6 episodes · Series Composition

    Midcredits score: 41st percentile of all shows

  • Zom 100: Bucket List of the Dead(2023)

    Show 12 episodes · Series Composition · Writer

    Midcredits score: 60th percentile of all shows

  • Chainsaw Man(2022)

    Show 12 episodes · Series Composition · Writer

    Midcredits score: 96th percentile of all shows

  • Spriggan(2022)

    Show 6 episodes · Series Composition · Writer

    Midcredits score: 37th percentile of all shows

  • Summer Time Rendering(2022)

    Show 25 episodes · Series Composition · Writer

    Midcredits score: 94th percentile of all shows

  • Jujutsu Kaisen 0(2021)

    Screenplay

    Midcredits score: 98th percentile of all films

  • Star Wars: Visions(2021)

    Show 1 episode · Writer

    Midcredits score: 48th percentile of all shows

  • The Idaten Deities Know Only Peace(2021)

    Show 11 episodes · Series Composition · Writer

    Midcredits score: 69th percentile of all shows

  • Twittering Birds Never Fly: Don't Stay Gold (not in the MovieCove catalog yet)(2021)

    Screenplay

  • Jujutsu Kaisen(2020)

    Show 59 episodes · Series Composition · Writer

    Midcredits score: 96th percentile of all shows

  • Deca-Dence(2020)

    Show 12 episodes · Series Composition · Writer

    Midcredits score: 53rd percentile of all shows

  • Saezuru Tori Wa Habatakanai: The Clouds Gather(2020)

    Screenplay

    Midcredits score: 75th percentile of all films

  • Dorohedoro(2020)

    Show 23 episodes · Series Composition · Writer

    Midcredits score: 95th percentile of all shows

  • Levius(2019)

    Show 12 episodes · Series Composition

    Midcredits score: 55th percentile of all shows

  • Vinland Saga(2019)

    Show 48 episodes · Series Composition · Writer

    Midcredits score: 99th percentile of all shows

  • Banana Fish(2018)

    Show 24 episodes · Screenplay · Series Composition · Writer

    Midcredits score: 95th percentile of all shows

  • Legend of the Galactic Heroes: Die Neue These(2018)

    Show 1 episode · Writer

    Midcredits score: 84th percentile of all shows

  • Darling in the Franxx(2018)

    Show 4 episodes · Writer

    Midcredits score: 78th percentile of all shows

  • Inuyashiki(2017)

    Show 11 episodes · Series Composition

    Midcredits score: 81st percentile of all shows

  • Ajin: Demi-Human(2017)

    Writer

    Midcredits score: 61st percentile of all films

  • Kakegurui(2017)

    Show 1 episode · Writer

    Midcredits score: 63rd percentile of all shows

  • Ajin Part 3: Shougeki(2016)

    Screenplay · Series Composition

    Midcredits score: 89th percentile of all films

  • Mob Psycho 100 (not in the MovieCove catalog yet)(2016)

    Writer

  • Mob Psycho 100(2016)

    Show 37 episodes · Series Composition · Writer

    Midcredits score: 98th percentile of all shows

  • Ajin Part 2: Shoutotsu(2016)

    Screenplay · Series Composition

    Midcredits score: 92nd percentile of all films

  • Kabaneri of the Iron Fortress(2016)

    Show 3 episodes · Writer

    Midcredits score: 58th percentile of all shows

  • Ajin(2016)

    Show 26 episodes · Series Composition · Writer

    Midcredits score: 78th percentile of all shows

  • Ajin Part 1: Shoudou(2015)

    Screenplay · Series Composition

    Midcredits score: 91st percentile of all films

  • The Empire of Corpses(2015)

    Screenplay

    Midcredits score: 46th percentile of all films

  • Seraph of the End(2015)

    Show 24 episodes · Series Composition · Writer

    Midcredits score: 74th percentile of all shows

  • Japan Animator Expo (not in the MovieCove catalog yet)(2014)

    Show 1 episode · Writer

  • Terror in Resonance(2014)

    Show 4 episodes · Writer

    Midcredits score: 84th percentile of all shows

  • Kill La Kill(2013)

    Show 1 episode · Writer

    Midcredits score: 86th percentile of all shows

  • Attack on Titan(2013)

    Show 58 episodes · Series Composition · Writer

    Midcredits score: 97th percentile of all shows

  • Panty & Stocking with Garterbelt(2010)

    Show 4 episodes · Scenario Writer · Writer

    Midcredits score: 59th percentile of all shows

  • Chainsaw Man - Assassins Arc (not in the MovieCove catalog yet)

    Writer

  • Nue's Exorcist (not in the MovieCove catalog yet)

    Show 1 episode · Series Composition

Career shape

A full career of 51 titles, 49 of them dated from 2010 to 2026.

Biggest box office

Jujutsu Kaisen 0 (2021)

$166M worldwide

Highest rated

Chainsaw Man - The Movie: Reze Arc (2025)

Midcredits 99th

Most popular right now

Dandadan (2024)

By role

only this rolewith another role
Writing50 of 51: 50 only writing, 0 with another role · typical Midcredits score84thOther crew1 of 51: 1 only other crew, 0 with another role

By decade

2010s22 · crew2020s27 · crew

Counts from TMDB across their full career, self appearances out; a title counts in every role they held on it. The ring is the typical Midcredits score (the median percentile) of the role's titles that are on MovieCove, shown from 5 scored.

How do Hiroshi Seko's films land?

Their typical MovieCove film has a Midcredits score in the 91st percentile, the median of all 11; across their 7 films with reception data, the typical film sits in the 77th percentile for acclaim.

Acclaim · how much people like their films

77thpercentile
Typical film, the median of 7

Approval · how many liked their films

76thpercentile
Typical film, the median of 7

Reach · how many have seen their films

86thpercentile
Typical film, the median of 7

Midcredits score across 42 titles, by percentile

  • 75th and up27
  • 50th to 74th10
  • 25th to 49th4
  • Below 25th1

Shape of the crowd

16 of their 42 titles are Crowd Pleasers.

  • Universally Loved12
  • Cult Classic1
  • Crowd Pleaser16
  • Broadly Agreed3
  • Mixed10

Most divisive · writer

Jujutsu Kaisen: Execution (2025)

77th percentile spread · 17% rated it 4 or lower

Most loved · writer

Chainsaw Man - The Movie: Reze Arc (2025)

Midcredits 99th · 93% liked

Reviewers score the dialogue 48/100 and the plot and story 51/100 in their films, across 7 reviewed titles. The element that speaks to their work as a writer.

Percentiles are each film's standing among all films on MovieCove; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their MovieCove titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.

Is Hiroshi Seko's work okay for kids?

Across up to 14 MovieCove titles with content scores, violence & gore and frightening / intense run heavier than most films.

Their medianMedian of all filmsMiddle 80% of their titles
Violence & Gore11 titles63–94 · median 82 · severeheavier than most filmsMedian of all films: 44
Sex & Nudity14 titles21–63 · median 39 · moderatenear the median of all filmsMedian of all films: 32
Profanity10 titles28–59 · median 43 · moderatenear the median of all filmsMedian of all films: 36
Alcohol & Drugs10 titles9–37 · median 30 · mildnear the median of all filmsMedian of all films: 33
Frightening / Intense10 titles62–91 · median 69 · intenseheavier than most filmsMedian of all films: 39

Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted. The band's colour is the severity of their median, named beside it.

Who does Hiroshi Seko work with?

People who share at least 2 of Hiroshi Seko's MovieCove titles, grouped by what they did on them; Takahiro Sakurai shares the most, 4.

Directors

Writers

Actors

Composers, cinematographers and editors

Producers