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This is the official website of the indie anime Operation ONI that we're creating in the traditional brush painting style named Sumi-e. We’d appreciate it if you could support our crowdfunding campaign this November. Our goal is to bring this film to the film festival abroad and walk the red carpet. Thank you for your support.

Sep 30,   Introduction of Town Girl's voice actress, Neon New
Sep 23,   Introduction of Ohaguro Bettari's voice actress, Momoko Iwasawa
Sep 16,   The 90 sec. trailer, narrated by Tomiko Clare
Sep 09,   Introduction of Hakuo's voice actor, Takashi Narumi

Sumi-e is one of the East Asian styles of traditional brush painting. While it's monochrome, it can express rich and impressive scenes. Watch these drawing videos and you'll find what it is.

Drawing the castle town in Sumi-e

Drawing an alley in Sumi-e

Drawing Tomiko Claire in Sumi-e

A Sumi-e trial lesson with Tomiko Claire and Sho Hosokawa

ONI are Japanese demons with horns. They have been popular stock characters in Japanese fairytales, manga, film, art, literature, theatre and so on for a long time.

And the lead of this film has these horns too, even though she is not an ONI. You will be able to see the reason why she has horns and discover the meaning of "Operation ONI" at the end of story. It's a military operation concerning her.

This is a fictional story about Japan, when there were "samurai"s.

A war is about to break out between humans and the Empire of Spirits. Mao, the strongest samurai with ONI horns, had been separated from her parents by death and was raised by the tyrannical lord.

Mao is human, but because of the demon horn on her head, she is not considered human. She has always felt lonely.

Only her best friend, Onatsu, was able to save her from her loneliness. Filled with Onatsu's family-like love and affection, Mao felt happy for the first time in her life.

Then, a war begins between humans and monsters. Mao is going to protect both their country and Onatsu. But Onatsu says, "This is the end of our friendship." She bursts into tears and disappears.

What is the true meaning of Onatsu's words?
And what will become of their friendship?

The truth is hidden in Mao's mysterious horns...


Voice actress: Risa Imayanagi (Website / Twitter)

Age: 18
Birthday: April 1
Nationality: Mito
Race: Human

A samurai with ONI horns on her head and uncommon strength. People call her ONI, but she is a pure-hearted, calm and kind person.

She has no family other than her tyrannical foster father, Hakuo. But she doesn't feel lonely thanks to her best friend, Onatsu. She is the happiest with her.

Favorite food: Steamed white rice
Her name means: Sakura in full bloom

Drawn by Mino Kihashi, designed by Suzu Nomiya.

Voice actress: Yuri Kondo (Website / Twitter)

Age: 22
Birthday: August 8
Nationality: Tama
Race: Human

Mao's best friend, working as a chef in a local restaurant.
And she is a rare person who is as strong as Mao.

She is very patient, and is very affectionate only to Mao. She is the happiest when she takes care of her.

On the other hand, she's tight-lipped and doesn't like to talk about her personal life a lot.
Sometimes she looks at Mao and has tears in her eyes, but she doesn't want to talk about why. Sometimes she stares at Mao with icy eyes, but doesn't want to talk about the reason why. Sometimes she's desperate and wants to be alone, but doesn't want to talk about why.

Favorite food: Katsuobushi (Bonito Flakes)
Her name means: Summer (Natsu means summer)

Drawn by Mino Kihashi, designed by Suzu Nomiya

Voice actress: Ryoku Dion

Age: 5382
Birthday: January 1
Nationality: Empire of Spirits
Race: Spirit (Humans call them monsters)

The legendary fox spirit who uses arts of brainwashing and transfiguration. She is a general in the Empire of Spirits.
People say she has been involved in many historical turning points in the entire world.
Nothing else is known about her.

Favorite food: Dango (fake information maybe)
Her name means: Flower in autumn

Drawn by Mino Kihashi, designed by Suzu Nomiya

Voice actror: Takashi Narumi (Website)

Age: 48
Birthday: January 21
Nationality: Mito
Race: Human

Mao's father and the lord of Mito Castle. A crazy and diabolical tyrant. People say he is eating monsters (spirits) to be much stronger. He is called "demon" by spirits, and his life is threatened.

Favorite food: Secret
His name means: King in winter

Drawn by Mino Kihashi, designed by Suzu Nomiya

Ohaguro Bettari
Voice actress: Momoko Iwasawa (Website / Twitter)

Age: unknown
Birthday: unknown
Nationality: Empire of Spirits
Race: Spirit (Humans call them monsters)

Saki's boss, and an ambitious monster who is always aiming for a higher position. She turns her teeth black as part of fashion known as "Ohaguro". She applies a solution of iron dissolved in acetic acid to her teeth, and then applies a powder called fushiko, which contains a lot of tannin.

Favorite food: Human
Her name means: Lots of black on teeth

Drawn by Mino Kihashi, designed by Suzu Nomiya

Voice actress: Tomiko Claire (Website / Twitter)

Age: 2
Birthday: unknown
Nationality: Empire of Spirits
Race: Spirit (Humans call them monsters)

Ohaguro bettari's buddy. This kitten relies on Ohaguro bettari and is always on her shoulder. She likes to speak foreign languages.

Favorite food: Milk
Her name means: Pupa

Drawn by Mino Kihashi, designed by Suzu Nomiya

Manager of a Local Restaurant
Voice actor: under consideration

Rice Shop Girl
Voice actress: under consideration

Rice Shop Boy
Voice actor: under consideration

Hakuo's Aide
Voice actress: under consideration

Hakuo's Aide
Voice actor: under consideration

Town Girl
Voice actress: Neon (YouTube)


Sumi-e is one of the East Asian styles of traditional brush painting. While it doesn't use many colors, it can express rich and impressive scenes. These Sumi-e art will be background pictures of the film. It's extremely compelling and I'm sure you will feel inspired by it. We are very honored to invite you to this mysterious and traditional Asian world.

Castle town

The first collab with digital and analog Suibokuga (Sumi-e)

A castle surrounded by sakura trees

Mao in front of a monster

Harvesting summer vegetables

Dancing in Yukata at a summer festival

Enjoying a picnic lunch

On the hilltop

Under the big cherry tree


Unspoken Secret

Hakuo, diabolical tyrant

A video message from our lead voice actress, Risa Imayanagi

Fawkes Sutherland introduction

Introduction of the voice actress of Sanagi, Tomiko Claire

Introduction of Hakuo's voice actor, Takashi Narumi

Introduction of Ohaguro Bettari's voice actress, Momoko Iwasawa

Introduction of Town Girl's voice actress, Neon New

Hiroshi Takane
Producer, Director, Story, Script Writer and Editor
A scriptwriter and director born in Tokyo Japan in 1979. In 2005, he graduated from the department of scriptwriting of Japan Academy of Moving Images, that Director Shōhei Imamura established, and began his career on 428: Shibuya Scramble in 2006, as a member of Synthese Co., Ltd., a scriptwriting company, of which he is a founding member. He has been writing scripts for Fire Emblem and other famous titles for more than 15 years, and also has worked on advertisements for NHK, LEXUS, SONY, Wacoal, BABYMETAL, and Granblue Fantasy etc. This is his first film as a director. (Linkedin / FilmFreeway)
Suzu Nomiya
Character Designer
A freelance illustrator. Striving to draw attractive expressions. (Linktree)
Sho Hosokawa
Sumi-e Art Director, Background Artist
Has been self-taught in Suibokuga and watercolor since junior high school. For several years after his high school years, he explored the roots of beauty by copying famous paintings from all over the world. He discovered that the oldest animation techniques in Japan, such as Chōjū-giga (Animal Caricatures), and modern animation techniques have the same tradition that has been handed down from generation to generation while changing their forms. Since then, he has been researching "the expression without discomfort" as a bridge between traditional culture and modern animation culture. (YouTube / Twitter)
Mino Kihashi
A dexterous freelance illustrator and manga creator who can do a variety of jobs. She says "I'm happy to be involved in animation work. I'll do my best!" (Twitter)
Hiroko Aoyama
Script Director
Has worked several times with Director Takane since NHK, and directed most of his scripts. Founded a creative team named "DIP.LÔME" with him in 2015. This film is the first work as DIP.LÔME.
Fawkes Sutherland
Music Composer

As a student, this is his first major project as a composer. (Twitter)
Monster Designer

A freelance illustrator and concept artist. His inspiration comes from the deep value and heart of things that roam in our world, in meanings behind surfaces, behind crude ideas that blossom into beauty. Searching for a way to express those hidden gems, to the jeweled eyes of those that wander. (Website / Twitter)

Producing and providing background music, mixing, mastering, and karaoke sound sources. He's extremely thrilled because he loves Japanese style music and wanted to be involved in this film production. (Website / Twitter / YouTube)
Marco Preißer
English Advisor

A teacher for English, ethics and philosophy from Germany. In his spare time, he writes music and plays the guitar in several metal bands.
Kinosuke Rakuga (Yoko Mori)
Action Advisor

Graduated from Tokyo Animator Gakuin. After working as an illustrator for educational materials and sales advertisements, she is now a housewife who makes hobby videos.
Deanna J. Wright
English Translator

She is an American writer, translator, teacher, and project leader currently living in Berlin to complete her Master's degree in Sociology and Politics. She lived in Osaka for seven years and hopes to share her love and appreciation for Japan and the Japanese language through her translation and teaching work. (LinkedIn)
Eugene Kwaku
Public Relations

A marketing executive and public relations specialist who covers broad range of category from art, music to business and entrepreneurship. His mission is to connect different countries through individuals “passion” of building things and contributing to the good of people and society. (LinkedIn)
kofudeya (Kumiko Goto)
Kanji Logo Designer

An amazing Kanji Logo Designer who created a Kanji Logo for this anime.
Pedro H. de Souza
Brazilian portuguese Translator

Hi I'm a college student that just likes pop culture so much and fell in love with this project so I decided to help with what I can. (Twitter)

Jean-Michel Bruyere
Business Advisor
A Belgian entrepreneur, passionate about start-ups and self-employed projects. He has worked in various fields such as chemistry, catering, the environment and energy.

This film is currently in production. We would be very grateful if you could support our crowdfunding campaign this November. Your name will be listed in the post credits of the film and you will receive our exclusive merch as the reward (thank you gift).

Examples of the reward (thank you gift). We'll add more.

And we are also currently looking for companies sponsoring us.
Please feel free to contact us via DM on Twitter or Instagram.

This film is 60 minutes long.
We will divide it into 4 parts and produce and release about 15 minutes each year.
Through this Sumi-e film, we would like to show a new aspect of our culture to many people all over the world.
Our goal is to participate the international film festival with this film.
Thank you very much for your cooperation.

Best regards,
Producer, director, story, script writer and editor of Operation ONI
Hiroshi Takane


Actor/actress agency YU-RIN PRO
Foreign talent agency Free Wave Co.,Ltd.
Actor/actress agency Early Wing
Recording Studio STUDIO effort
Tengu idea Arnaud Bruyere
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Copyright (C) Operation ONI. All rights reserved.