Koji Aritomi (有冨 興二) is a Japanese anime director, storyboarder and production manager.
Biography from TMDB.
- Director, also writer
- 29 on MovieCove · 32 credits in all
Known for
What are Kōji Aritomi's films like?
Across their 11 MovieCove titles with a thematic analysis, their films lean Self and Survival.
Themes
Moods and endings
- Happy3
- Bittersweet5
- Ambiguous3
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 Kōji Aritomi's films?
As of October 24, 2026, 25 of their 29 MovieCove titles stream on a subscription or free service, most on Crunchyroll (17).
- Crunchyroll
- Fighting Spirit (2000) · writer
- Rurouni Kenshin (2023) · director
- Space Brothers (2012) · director
- Kill La Kill (2013) · director
- Tokyo Revengers (2021) · director
- Tojima Wants to Be a Kamen Rider (2025) · director
- Cells at Work! Code Black (2021) · director
- Kaiju Girl Caramelise (2026) · director
- X (2001) · director
- Akashic Records of Bastard Magic Instructor (2017) · director
- Gunslinger Girl (2003) · director
- Ninja Scroll: The Series (2003) · director
- +5 more
Subscription and free streaming for Kōji Aritomi'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
32 credits, 29 with a MovieCove page.

Kaiju Girl Caramelise(2026)
Midcredits score: 73rd percentile of all shows
Midcredits score: 80th percentile of all shows
Detectives These Days Are Crazy! (not in the MovieCove catalog yet)(2025)

Rurouni Kenshin(2023)
Midcredits score: 90th percentile of all shows
Eternal Boys(2022)
Midcredits score: 18th percentile of all shows (provisional, few ratings)
Midcredits score: 36th percentile of all shows
Build Divide: Code Black(2021)
Midcredits score: 18th percentile of all shows
Tokyo Revengers(2021)
Midcredits score: 83rd percentile of all shows
Midcredits score: 78th percentile of all shows
Otherside Picnic(2021)
Midcredits score: 20th percentile of all shows
Happy-Go-Lucky Days(2020)
Midcredits score: 24th percentile of all films
Afterschool Dice Club(2019)
Midcredits score: 23rd percentile of all shows
Lost Song(2018)
Midcredits score: 49th percentile of all shows
Little Witch Academia(2017)
Midcredits score: 85th percentile of all shows
Midcredits score: 64th percentile of all shows
Midcredits score: 74th percentile of all shows
Terra Formars(2014)
Midcredits score: 31st percentile of all shows
Wake Up, Girls!(2014)
Midcredits score: 25th percentile of all shows
Kill La Kill(2013)
Midcredits score: 86th percentile of all shows
Miyakawa-ke no Kuufuku (not in the MovieCove catalog yet)(2013)
Midcredits score: 92nd percentile of all shows
Space Brothers(2012)
Midcredits score: 90th percentile of all shows
Midcredits score: 75th percentile of all films
Midcredits score: 61st percentile of all films
Bleach(2004)
Midcredits score: 93rd percentile of all shows
Gunslinger Girl(2003)
Midcredits score: 62nd percentile of all shows
Ninja Scroll: The Series(2003)
Midcredits score: 47th percentile of all shows
X(2001)
Midcredits score: 69th percentile of all shows
Fighting Spirit(2000)
Midcredits score: 99th percentile of all shows
His and Her Circumstances (not in the MovieCove catalog yet)(1998)

Spriggan(1998)
Midcredits score: 61st percentile of all films
Princess Mononoke(1997)
Midcredits score: 99th percentile of all films
Career shape
A full career of 25 titles from 1997 to 2026.
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 Kōji Aritomi's work okay for kids?
Across up to 5 MovieCove titles with content scores, violence & gore and sex & nudity run heavier than most films.
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 Kōji Aritomi work with?
People who share at least 2 of Kōji Aritomi's MovieCove titles, grouped by what they did on them; Ryôka Yuzuki shares the most, 3.
Directors
- Keiji KawakuboShared titles: Bastard!! Heavy Metal, Dark Fantasy (2022), Lost Song (2018)See all 2 shared titles with Keiji Kawakubo
- Norikazu IshigookaShared titles: Lost Song (2018), Akashic Records of Bastard Magic Instructor (2017)See all 2 shared titles with Norikazu Ishigooka
- Ryôta MiyazawaShared titles: Lost Song (2018), Akashic Records of Bastard Magic Instructor (2017)See all 2 shared titles with Ryôta Miyazawa
- Ken'ichi KawamuraShared titles: Gunslinger Girl (2003), Fighting Spirit (2000)See all 2 shared titles with Ken'ichi Kawamura
Writers
- Touko MachidaShared titles: Akashic Records of Bastard Magic Instructor (2017), Wake Up, Girls! (2014)See all 2 shared titles with Touko Machida

Actors
- Ryôka YuzukiShared titles: Kill La Kill (2013), My Teen Romantic Comedy SNAFU (2013), X (2001)See all 3 shared titles with Ryôka Yuzuki

- D.C. DouglasShared titles: Bastard!! Heavy Metal, Dark Fantasy (2022), Fighting Spirit (2000)See all 2 shared titles with D.C. Douglas

- Nao TôyamaShared titles: Bastard!! Heavy Metal, Dark Fantasy (2022), My Teen Romantic Comedy SNAFU (2013)See all 2 shared titles with Nao Tôyama

- Rikiya KoyamaShared titles: Ninja Scroll: The Series (2003), Fighting Spirit (2000)See all 2 shared titles with Rikiya Koyama

Editors
- Mai HasegawaShared titles: Bastard!! Heavy Metal, Dark Fantasy (2022), Lost Song (2018), Akashic Records of Bastard Magic Instructor (2017)See all 3 shared titles with Mai Hasegawa
Mixed roles
- Z. Charles BoltonShared titles: Otherside Picnic (2021), Akashic Records of Bastard Magic Instructor (2017)See all 2 shared titles with Z. Charles Bolton
- Yoshiaki KawajiriShared titles: Ninja Scroll: The Series (2003), X (2001)See all 2 shared titles with Yoshiaki Kawajiri

