Direct Your Fanfiction. Stay True to the Original Story.

Your favorite characters and worlds deserve respect. Lunafic is an AI co-writer that knows the lore, remembers your world, and writes under your precise direction.

Core Feature

Capture the true
Japanese
nuance

Our battle-tested characters are ready to import, but what truly brings them to life is the nuance. Otaku culture thrives on Japanese voice acting, yet reading Kanji is hard, and English localization often loses the original soul.

So we reinvented the format for you: Romanized Japanese + English Translation. You can finally hear their exact cadence in your head without needing to be fluent.

  • Hear the exact voice acting cadence in your mind
  • No more awkward or stripped-down English localization
  • Perfect for Anime, Manga, and Light Novel fanfiction
Dialogue Format: Romanized + Translation
R
Roroa AmidoniaHow a Realist Hero Rebuilt the Kingdom
"Souma-han toko ni totsugi ni kitan ya."
"I've come to marry into your family, Souma-han."
She speaks in a heavy Kansai dialect, her sharp merchant mind hidden behind a boisterous, playful smile.
A
Aqua HoshinoOshi no Ko
"Maa, mukashikatagi no hito mo iru kara na."
"Well, there are still some old-fashioned people out there."
His voice is low and detached, viewing everyone around him as pieces on a chessboard for his revenge.
S
Sayu OgiwaraHigehiro
"Nee, Ren-kun. Watashi ga tonari ni itemo... hontou ni ii no...?"
"Hey, Ren-kun. Is it really okay for me to stay by your side...?"
She asks with a disarming, soft smile and a playful tilt of her head, hiding her deep-seated fear that her past might drag him down.
Core Feature

You direct. The AI writes in character.

Type what happens next from inside the scene. "Sayu forces a smile and deflects, but her voice shakes." The AI writes the words, stays in character, and uses only what your character would know.

If your character only knows someone as "the quiet one," that's all the AI has to work with. You see through their eyes. The AI sees through their eyes.

  • Streaming ghost text. See prose appear word by word, accept or discard
  • Pacing warnings when the tempo doesn't match your scene
  • Knowledge leak detection. Flags when a character "knows" something they shouldn't
Agent Writing — Fanfiction Mode
Direction:

"Ren asks about the rumors. Sayu forces a smile and deflects with a question, but her voice shakes."

Sayu stared at her shoes. She gripped her skirt. Ren stood in front of her, waiting.

"Um..." She forced a quick laugh and tilted her head. "It's fine. People just say whatever they want. We don't need to listen to them, right?"

She took a shaky breath.

"Aren't you hungry? Let's go get something to eat."
Generated with: Character 'Sayu', Character 'Ren'
Fanfiction Editor
The council chamber fell silent as
Text
Plain paragraph text
Dialogue
Character dialogue block
Scene Break
Visual scene separator
Beat Marker
Track story beats
Character Thought
Inner monologue block
Flashback
Flashback scene wrapper
Type to filter

A full editor. Not just a text box.

Lunafic is a complete writing studio. You don't have to fight the formatting. Type / anywhere to insert dialogue, scene breaks, or flashbacks.

Keep your hands on the keyboard. Stay in the flow. The editor handles the layout so you can focus on the story.

AIReference AI — Brainstorm Mode
What if Subaru and Hana have met before the main story, but she doesn't remember?
That's a powerful twist. Here's how it could work:
  • Foreshadowing: Hana feels deja vu at the Starfall Bridge -- exactly where they first met as children
  • Conflict: Subaru has been protecting her memory loss. When she remembers, she feels betrayed
  • Payoff: The "Twilight Mirror" is actually the vessel holding her lost memories
↳ Based on: Character 'Hana', Character 'Subaru', Lore 'The Starfall Bridge'
Core Feature

Brainstorm plot twists. Research canon. Develop arcs.

The Reference AI sits in your sidebar and actually knows your story. Not because you pasted a summary. Because it reads your World Bible, your documents, and your brainstorm notes in real-time.

Switch between modes: Brainstorm for ideas, Research for world-building details, Structure for plot analysis. Every response cites its sources.

Plan Your Multi-Chapter Fanfiction

Long-form fanfiction needs structure. Use built-in templates: Three Act, Hero's Journey, or build your own. Map beats, link them to chapters, and watch the AI track your progress.

As you write, the AI automatically marks beats as "in progress" or "complete." No more losing track of where you are in the story.

ACT I
The Ordinary World
Call to Adventure
ACT II
Crossing the Threshold
The Ordeal
ACT III
The Revelation
Return Changed

Your next story is waiting.

Bring your imagination. The AI handles the prose.

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