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Keigo Koyanagi

Keigo Koyanagi

Writer · Born September 25, 1983 (43) · Toyama, Japan

Keigo Koyanagi (小柳 啓伍, Koyanagi Keigo) is a Japanese scriptwriter and production manager.

Biography from TMDB.

Born
September 25, 1983 (43)
From
Toyama, Japan
Works as
Writer
Titles
11 on MovieCove · 22 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 156 days to Oct 27Down 9% in 30 days

What are Keigo Koyanagi's films like?

Across their 8 MovieCove titles with a thematic analysis, their films lean Self and Survival.

Themes

share of theme weight
Self
33%
Survival
31%
Bonds
24%
Ideas
6%
Morality
3%
Society
3%
Survival4 titles, browse their movies with this themeComing of age3 titles, browse their movies with this themeFriendship2 titles, browse their movies with this themeIdentity2 titles, browse their movies with this theme

Moods and endings

endings are an aggregate; no title is named

Dominant moods · mentions across their titles

Thrilling
3
Dread
3
Hopeful
4
Joyful
2
Tense
2
Other
7

How their films linger

Hopeful6 titles, browse their movies with this aftertasteFeel-good3 titles, browse their movies with this aftertasteUnsettling2 titles, browse their movies with this aftertasteFun2 titles, browse their movies with this aftertasteThought-provoking2 titles, browse their movies with this aftertaste

How their films end · 1 with a twist

  • Happy2
  • Bittersweet4
  • Ambiguous2

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 Keigo Koyanagi's films?

As of October 24, 2026, 10 of their 11 MovieCove titles stream on a subscription or free service, most on Crunchyroll (6).

Subscription and free streaming for Keigo Koyanagi'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

22 credits, 11 with a MovieCove page.

  • Clevatess(2025)

    Show 24 episodes · Series Composition

    Midcredits score: 87th percentile of all shows

  • 119 Emergency Call (not in the MovieCove catalog yet)(2025)

    Show 11 episodes · Writer

  • T-P Bon(2024)

    Show 5 episodes · Screenplay

    Midcredits score: 41st percentile of all shows

  • Bang Brave Bang Bravern(2024)

    Show 12 episodes · Series Composition · Writer

    Midcredits score: 46th percentile of all shows

  • Ultraman Blazar (not in the MovieCove catalog yet)(2023)

    Show 25 episodes · Screenplay · Writer

  • Ultraman Trigger: New Generation Tiga(2021)

    Show 2 episodes · Writer

    Midcredits score: 34th percentile of all shows

  • Godzilla Singular Point(2021)

    Show 13 episodes · Co-Writer · Researcher

    Midcredits score: 31st percentile of all shows

  • Ultraman Z (not in the MovieCove catalog yet)(2020)

    Show 28 episodes · Military Consultant

  • The Rising of the Shield Hero(2019)

    Show 62 episodes · Series Composition · Writer

    Midcredits score: 74th percentile of all shows

  • Sirius the Jaeger (not in the MovieCove catalog yet)(2018)

    Show 12 episodes · Series Composition

  • Dragon Pilot: Hisone and Masotan(2018)

    Show 12 episodes · Military Consultant · Researcher · Writer

    Midcredits score: 39th percentile of all shows

  • Our Love Has Always Been 10 Centimeters Apart(2017)

    Show 2 episodes · Writer

    Midcredits score: 61st percentile of all shows

  • Under the Dog (not in the MovieCove catalog yet)(2016)

    Screenplay · Series Composition

  • Regalia: The Three Sacred Stars (not in the MovieCove catalog yet)(2016)

    Show 13 episodes · Series Composition

  • The Lost Village(2016)

    Show 2 episodes · Writer

    Midcredits score: 4th percentile of all shows

  • The Pot of Promise - First Love in Arita (not in the MovieCove catalog yet)(2016)

    Writer

  • Scorching Ping Pong Girls(2016)

    Show Writer

    Midcredits score: 12th percentile of all shows (provisional, few ratings)

  • Zorori the Naughty Hero: Heroes of Space (not in the MovieCove catalog yet)(2015)

    Screenplay

  • Classroom Crisis (not in the MovieCove catalog yet)(2015)

    Show 2 episodes · Writer

  • GO!GO!575 (not in the MovieCove catalog yet)(2014)

    Show 4 episodes · Series Composition

  • The Pet Girl of Sakurasou (not in the MovieCove catalog yet)(2012)

    Show 2 episodes · Script

  • Hanasaku Iroha(2011)

    Show Writer

    Midcredits score: 74th percentile of all shows

Career shape

A full career of 20 titles from 2012 to 2025.

Highest rated

Clevatess (2025)

Midcredits 87th

Most popular right now

T-P Bon (2024)

By role

only this rolewith another role
Writing18 of 20: 16 only writing, 2 with another role · typical Midcredits score41stOther crew4 of 20: 2 only other crew, 2 with another role

By decade

2010s12 · crew2020s8 · 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.

Is Keigo Koyanagi's work okay for kids?

Across a limited sample of up to 3 MovieCove titles with content scores.

Their medianMedian of all films
Sex & Nudity3 titlesmedian 45 · moderateMedian of all films: 32

Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted.

Who does Keigo Koyanagi work with?

People who share at least 2 of Keigo Koyanagi's MovieCove titles, grouped by what they did on them; Mari Okada shares the most, 3.

Directors

Writers

Actors