What is a trope in fanfiction?
A trope is a recognizable plot device, relationship dynamic, or situation that shows up across many stories: enemies to lovers, only one bed, found family. In fanfiction, tropes double as tags readers use to find stories.
A ready-made idea to start: «Draco and Harry are forced to share a dorm during their eighth year at Hogwarts: enemies to lovers, slow burn, forced proximity.»
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A trope is not the same as a cliché. The trope is the frame; the cliché is that frame with nothing of the writer's own added. Enemies to lovers runs from Pride and Prejudice to thousands of Drarry fics, and it can still read fresh every time.
On AO3, tropes live in the Additional Tags field, which is why knowing the names helps you find what you want to read and tag your own work accurately. Below are 54 fanfic tropes, grouped by type, each with a short meaning and a fandom example.
The 10 most popular fanfic tropes
- Enemies to lovers: rivals or foes end up together.
- Slow burn: feelings build over a very long time.
- Found family: strangers become family by choice.
- Hurt/comfort: one character suffers, another cares for them.
- Fake dating: a pretend relationship turns real.
- Only one bed: one room, one bed, two people.
- Soulmates: a marked, fated bond between two people.
- Friends to lovers: best friends fall for each other.
- Mutual pining: both are in love, neither says it.
- Coffee shop AU: canon characters run or haunt a café.
Romance tropes
- Enemies to lovers. They start out hating each other and end up together. The classics: Drarry in Harry Potter and Violet and Xaden in Fourth Wing. Read enemies to lovers fics · how to write it
- Rivals to lovers. Less hatred, more competition: for a trophy, top grades, a promotion. Expect banter instead of blood.
- Friends to lovers. Years side by side, then one evening everything shifts. The stakes: losing the friendship. Read friends to lovers fics
- Slow burn. The romance builds across dozens of chapters; the first kiss might land at 80k words. Jaime and Brienne in Game of Thrones are the gold standard. Read slow burn fics · why slow burn hooks readers
- Mutual pining. Both are in love, both are sure it's hopeless. The reader sees it; the characters don't. Sherlock and John in Sherlock. Read mutual pining fics
- Idiots in love. Everyone around them knows they're a couple except the two of them. The comedic cousin of mutual pining.
- Fake dating. They pretend to be together for a wedding, the parents, or the press, and the act stops being an act. Read fake dating fics · fake dating trope breakdown
- Arranged marriage. A political alliance or a family demand; love comes after the wedding. Westeros supplies endless setups.
- Forbidden love. Feuding houses, opposite sides of a war, an order's vows. Romeo and Juliet is the template.
- Second chance romance. Exes meet again years later, and the old wounds are still open. Read second chance fics
- Love triangle. Two people want the same person. It only works if both options are convincing.
- Secret relationship. The couple hides from friends, family, or all of Hogwarts.
- Grumpy/sunshine. One scowls, the other glows, and the sunshine slowly wears the grump down. Sasuke and Naruto in Naruto fanon. Read grumpy/sunshine fics
- Soulmates. A world where your match is marked: a name on your wrist, a countdown timer, shared pain. The mate bond in ACOTAR is a close cousin. Read soulmate fics · how to write soulmates
Forced proximity tropes
- Forced proximity. Characters get locked in together: a mission, a quarantine, a shared room. Keeping distance stops being an option. Read forced proximity fics
- Only one bed. A hotel, one room, one bed, and someone offers to sleep on the floor. Read only one bed fics · why only one bed works
- Snowed in / stuck together. A blizzard, a broken elevator, a cave. The trap forces the conversation they've been avoiding.
- Roommates. Shared kitchen, borrowed shampoo, fights over dishes. Often paired with a modern AU.
- Road trip. A car, a map, cheap motels. Long drives leave nothing to do but talk.
- Bodyguard. One protects the other because it's the job, until it isn't only the job. Brienne as a sworn sword is the textbook case.
- Undercover. A mission forces them to play roles, often a couple. Overlaps with fake dating.
Emotional tropes
- Hurt/comfort. One character is hurt, physically or emotionally; the other stays and helps them through it. Tony Stark and Peter Parker in Avengers. Read hurt/comfort fics · how to write hurt/comfort
- Found family. Strangers choose each other and become a family. The Straw Hats in One Piece, Team 7 in Naruto. Read found family fics · found family trope breakdown
- Whump. The author deliberately puts a character through pain; the focus is the suffering, and comfort may never arrive.
- Sick fic. A cold or a fever becomes an excuse for care. A small-scale hurt/comfort.
- Redemption arc. A villain or antihero slowly turns things around. Draco Malfoy is the usual candidate.
- Fix-it fic. The author rewrites the ending that broke the fandom's heart. Attack on Titan's ending produced a flood of them.
- Everybody lives. Nobody dies: Sirius, Fred, and Remus make it to the end. A close relative of fix-it.
- Angst with a happy ending. The reader is dragged through pain, but the ending is happy. A middle ground between angst and fluff.
- Protective character. "Touch him and you deal with me." Often an older sibling, a mentor, or a partner.
- Self-sacrifice. A hero is ready to die for the others, and the others refuse to let them. A reliable engine for angst.
Plot and fantasy tropes
- Time loop. The same day repeats until the character makes the right choice. Read time loop fics
- Time travel. Go back and change everything: the Time-Turner in Harry Potter, Kakashi waking up in his younger body in countless Naruto fics.
- Secret identity. A character hides who they really are; the payoff is the identity reveal, as in countless Peter Parker fics. Read hidden identity fics
- Body swap. Two characters wake up in each other's bodies and have to live each other's lives.
- Amnesia. A character forgets themselves or the person they love. Bucky Barnes is the canon example.
- De-aging. A potion or curse turns a character into a child, and the rest of the team learns to parent.
- Self-insert / isekai (SI). A modern person lands inside the canon world, or inside a character's body, knowing what happens next.
- Reincarnation. A character is reborn and remembers a past life.
- Chosen one. A prophecy lands on someone who never asked for it.
- Magical bond. A spell or ritual ties two people together, often enemies, and the bond can't be broken.
- Dark!character. A beloved hero turns to the dark side: dark!Harry, dark!Sasuke.
AU tropes: the same characters, a different world
An AU (alternate universe) moves the characters into a different setting or changes a key event of canon. For every type of AU, see our guide on what an AU is in fanfiction, or browse alternate universe stories.
- Modern AU. Wizards, ninjas, and knights living in an ordinary city with subways and smartphones. Read modern AU fics
- Coffee shop AU. One is a barista, the other orders the same drink every morning and writes a number on the cup. Read coffee shop AU fics
- College AU. Dorms, finals, parties, group projects.
- High school AU. First love, prom, cafeteria wars.
- Royalty AU. Princes, crowns, court intrigue.
- Canon divergence. The story follows canon up to one moment, then turns. "What if Cedric survived?"
- Role swap / reverse AU. Characters trade places: Draco is the Chosen One, Harry is sorted into Slytherin.
Format tropes
- Reader-insert (x reader, Y/N). The reader becomes the protagonist; "Y/N" stands in for their name.
- Crossover. Two fandoms in one story: Sherlock investigates a case at Hogwarts.
- 5+1. Five times something didn't happen, and one time it did.
- Missing scene. The moment canon skipped over.
- Post-canon. What happened to the characters after the ending.
How to combine tropes
The strongest fics rarely run on a single trope. Combinations that work:
- Enemies to lovers + slow burn + forced proximity. Lock enemies in together and let the feelings build slowly. The classic shape of a long Drarry fic.
- Found family + hurt/comfort. The family forms because someone shows up at the worst moment. A huge share of Avengers fics run on it.
- Fake dating + mutual pining. They're pretending to be a couple, both are actually in love, and neither will say so.
- Time loop + fix-it. The character lives through the tragedy again and again until they find a way out. Built for Attack on Titan.
Two or three tropes per story is the sweet spot. Five or more and the plot starts to feel like a checklist.
Want to see a combination in action? Generate the first chapter of an enemies-to-lovers, slow-burn Drarry fic. The AI writes it in about a minute, and you can continue or edit the story from there.
Trope vs. genre vs. cliché
- Genre answers "what does it feel like": fluff, angst, romance, drama. More in our guide to fanfic genres.
- Trope answers "what happens": enemies fall in love, strangers become family.
- Cliché is a trope with nothing specific added: the same rain on the window, the same final kiss, the same lines.
The same slow burn can be angst or fluff, which is why AO3 keeps genre-style tags and trope tags separate.
Written by the Fanficia editorial team: drafted with AI assistance, edited and fact-checked by a human. How we write: editorial policy