What Is Nijisousaku? Fan Works, Doujinshi and Doujin Culture Etiquette
Nijisousaku 二次創作 · Fan works
You watched a work you love and thought, “I want to draw another scene with this character.” Here is what nijisousaku means, the vocabulary of doujin culture, the background of the culture, and the guidelines and separation of spaces worth knowing before you share.

What Nijisousaku Means
Nijisousaku (二次創作, “secondary creation,” or fan works) is fans creating something new based on the characters and world of an existing work, the original, or “primary creation.” The forms are varied: novels, manga, illustrations, cosplay, videos (MAD) and even edited kirinuki clips.
NijisousakuNew creation from an existing work
- NovelsNew stories with known characters
- Manga and artIllustrations and comics
- CosplayWearing the character
- Videos (MAD)Fan-edited footage and music
- Kirinuki editsReworked clips
The source is called primary creation; fan works are secondary creation.
Words Around Doujin Culture
| Word | Meaning |
|---|---|
| Doujin activity | Independent creating and publishing by people who share an interest |
| Doujinshi | Books that individuals or circles produce themselves. Includes both fan works and originals |
| Circle | The unit of doujin production. Even one person is a “solo circle” |
| Offset (ofuse) | Offset-printed (books). Refers to a full-fledged binding ordered from a print shop |
| Comiket | The largest doujinshi convention. The festival of doujin culture |
Examples
- “With the latest chapter of the original out, the fan works are multiplying fast.”
- “I made my first doujinshi. The happiness of knowing this book exists in the world.”
- “I love that person’s interpretation so much that it changed how I read the original.”
- “After reading the guidelines closely, I can post my work with peace of mind.”
The Origins and Spread of the Culture
The roots of nijisousaku lie in doujin culture, where people with shared interests made their own books and shared them among friends. Convention venues gave the culture a “place” and widened the base of creators, and the internet and posting sites turned it into a culture that reaches the world the day you draw.
- Doujin cultureFriends make and share their own books
- ConventionsA place widens the base of creators
- Posting sitesWork reaches the world the day it is drawn
Each step lowered the distance between making something and sharing it.
What matters is that fan works aren’t mere imitation. They read between the lines of the original and dig into “how did the two spend their time afterward?” and “what were they thinking behind that choice?” A deep reading of the original is the fuel of fan works. That is why an excellent fan work can “change how you read the original.”
Where Fan Works Stand: The Gray Zone and Guidelines
Legally, fan works sit in territory that can touch the original’s copyright, a culture that rests on the tacit acceptance and tolerance of rights holders. In recent years it has become standard for companies to publish “fan-work guidelines” that spell out what is allowed: non-commercial use, form of distribution, prohibited items.
Publishing guidelines benefits both sides. Fans learn the boundary of “this far, you can create with confidence,” and rights holders can keep the culture’s heat while drawing a line only around uses that damage the brand. The guideline culture turned the unstable balance of tacit acceptance into a coexistence written down in words.
Tacit acceptance
- Fans guess where the line is
- Rights holders stay quiet
- An unstable balance
Published guidelines
- Non-commercial, distribution and prohibitions are spelled out
- Fans create with confidence
- Only brand-damaging uses are ruled out
Both sides gain. Fans get a boundary, rights holders keep the culture's heat.
Basic manners for fans:
- Check the original’s and the official side’s guidelines (follow them without fail if they exist)
- Avoid expressions that could be mistaken for official (“official-goods-style” is in the no-go zone)
- Observe zoning (consideration for jirai, the content individual fans want to avoid, and for age restrictions, plus the culture of search avoidance)
- Keep your kaishaku-chigai (clashes with how others interpret the work) over other people’s fan works to yourself
Zoning Is “A Technique for Protecting the Culture”
Tagging, content warnings, search avoidance, posting on locked accounts: in the fan-work world, techniques for reaching only those who want to see it and keeping it out of the sight of those who don’t are highly developed. This isn’t a sign of guilt. It is wisdom that lets varied tastes coexist, and also a courtesy that keeps trouble away from the original and the official side. If you start making fan works, give this etiquette of keeping spaces separate as much care as your creative skill.
- 01Read the guidelinesFollow them if they exist
- 02Avoid the look of officialNo official-goods-style work
- 03Zone your workTags, warnings, search avoidance
- 04Keep it in fan spacesDo not send it to official accounts
Separating spaces is a courtesy to the original as well as to readers.
Common Misunderstandings
- Fan-work creators don’t have a weak sense of rights. If anything, many read the guidelines closely and are sensitive to boundaries
- No guidelines does not mean prohibited. But there is no explicit permission either, so more cautious judgment is called for
- It is not a culture of going to show the official side. The basic manner is not to take fan works outside the space among fans, so don’t send them to official accounts
Notes From The Oshi Lab: Fan Works Are an Ecosystem, Not a Threat
Fan works are an ecosystem for an IP, not a threat. Fans’ creations keep the fandom sphere’s heat alive, become an entrance for newcomers (“I got into the original because of that picture”), and sometimes produce professional creators. Publishing guidelines was a masterful balance of protecting rights while harnessing the heat of creation. How an IP treats fan creations is where its maturity as an operator shows most.
The implications for community management are clear, too. A fandom sphere where creations are born keeps its heat even when official supply stops, because fans themselves become the source of supply. For IP holders, leaving “room that makes people want to draw” in a work, such as relationships worth digging into and settings with room for imagination, is nothing less than a design act that extends the life of a fandom. IPs that have both, written rules and room for creation, are loved for a long time.
Related Terms
Comiket / Coupling (ships) / Kaishaku-chigai / Jirai and self-defense
FAQ
What does nijisousaku mean?
Fans creating novels, manga, illustrations and more based on the characters or world of an existing work. The name means "secondary creation," as opposed to the original, or "primary creation," and fan works are one of the pillars of fan culture.
What is doujinshi?
Doujinshi are books that individuals or circles produce and publish themselves. Fan-work manga and novels are the best-known kind, but they also include original works and critical or research books.
Is nijisousaku illegal?
It's a gray area that can touch the original's copyright, but most of it rests on the tacit acceptance and tolerance of rights holders. In recent years it has become standard for companies to publish fan-work guidelines that spell out what is permitted.
What should I check first when starting fan works?
The first step is to check whether the original or the official side has published fan-work guidelines. It also helps to check that fandom's zoning customs, such as tagging where you post and search avoidance.



