Source story idea

Use this retained fictional scene to understand the lock-file method:

Title: Moon Gate Delivery

Nia, a 17-year-old bicycle courier, delivers sealed envelopes through a city where old train stations open into moonlit gardens after midnight.

In the first episode, she receives a silver envelope addressed to "The Person Who Lost Tomorrow." A stray station cat follows her through the gate. When Nia reaches the empty platform, the arrival board shows her own name.

Tone: cozy mystery with gentle supernatural danger.
Format: 6-panel comic page.
Audience: teen and adult manga readers.

The character who must stay consistent is Nia.

Step 1: Make a character lock file

Before generating panels, write down the details that should not drift.

Create a comic character lock file for Nia.

Return:
1. Silhouette anchors.
2. Face anchors.
3. Hair anchors.
4. Outfit anchors.
5. Props.
6. Color palette.
7. Expressions allowed.
8. Changes that are allowed by scene.
9. Details that must not change across panels.

Output example:

This table becomes the source of truth for every panel.

A good lock file is visual: the reader should be able to verify hair, outfit, props, and silhouette without rereading the whole brief.

What makes a good lock file

A useful lock file focuses on visible identity, not just personality.

Prioritize:

• a silhouette that reads at a glance
• face markers that survive close-ups
• hair details that are easy to verify
• outfit pieces that should stay stable across scenes
• one or two signature props
• a short list of allowed changes

If the file is too vague, the model or artist has room to improvise. If it is too long, prompts become brittle and harder to maintain.

Step 2: Generate a reference sheet first

Do not start with a finished comic page. Start with a model sheet or reference-style image.

Create a clean manga-style character reference sheet for Nia from "Moon Gate Delivery."

Character lock:
- 17-year-old bicycle courier
- short athletic build
- black chin-length bob haircut
- two small silver hair clips on the right side
- round cheeks, sharp curious eyes, small nose
- small bandage on left cheek
- teal courier jacket over cream hoodie
- compact backpack, dark shorts over leggings, yellow sneakers
- red bicycle and silver envelope as key props

Sheet contents:
1. Full-body front pose.
2. Side pose.
3. Close-up face.
4. Three expressions: focused, suspicious, surprised.
5. Small prop view: silver envelope.

Style: clean manga production reference, simple studio background, clear linework, no readable text, no logo, no watermark.

The goal is not to make a final page. The goal is to approve the design before it enters sequential art.

Step 3: Score the reference sheet

Use a simple 0-2 score before continuing.

For this editorial checklist, 10 out of 12 is a suggested review gate, not a measured model success rate. Mark a hidden or inapplicable detail as not assessed rather than awarding points for it.

If the score is low, repair the reference sheet first. Panel generation usually does not fix a weak identity; it tends to multiply the problem.

Step 4: Convert the scene into panel briefs

Now build a six-panel plan.

Turn this scene into a 6-panel comic page.

Rules:
- Keep Nia's character lock unchanged in every panel where she appears.
- Do not invent new outfits.
- Keep the silver envelope visible in panels 1, 3, and 6.
- Use varied camera angles, but preserve face and hair anchors.
- Leave room for captions and speech bubbles.
- Do not render readable text inside the art.

For each panel return:
- panel goal
- framing
- action
- continuity anchors
- dialogue or caption need
- what must not change

Example panel plan:

This is where a character becomes part of a sequence instead of a standalone illustration.

Why panel briefs help

A panel brief separates story function from image generation. That makes it easier to check:

• what each panel needs to communicate
• which anchors must be visible
• where close-ups may hide outfit details
• where props must stay on-model

It also reduces the temptation to keep rewriting one giant prompt.

Step 5: Generate the page with continuity rules

Use a prompt that repeats the lock file and the panel plan.

Create a 6-panel manga-style comic page for "Moon Gate Delivery."

Main character continuity:
Nia is a 17-year-old bicycle courier with short athletic build, black chin-length bob haircut, two small silver hair clips on the right side, round cheeks, sharp curious eyes, small nose, small bandage on left cheek, teal courier jacket over cream hoodie, compact backpack, dark shorts over leggings, yellow sneakers. She carries a silver envelope and rides a red bicycle.

Panel plan:
1. Nia receives the silver envelope outside a closed station.
2. Nia rides toward the old platform at night.
3. A stray cat appears beside a moonlit station gate.
4. Nia steps through the gate into a garden-platform hybrid.
5. The arrival board glows behind her.
6. The envelope seal reflects her own name.

Style:
Clean manga linework, readable sequential layout, cozy mystery lighting, clear panel borders, expressive faces, controlled camera variation.

Important:
Keep Nia's hair clips, cheek bandage, teal jacket, backpack silhouette, yellow sneakers, red bicycle, and silver envelope consistent. Leave room for speech bubbles. Do not generate readable text, logos, or watermarks.

Step 6: Run a consistency pass

After the page is generated, check each panel against the lock file.

Do not accept "close enough" if the change affects identity. Fix the panel.

An illustrated drift example

These three changes illustrate errors the checklist should catch. They are not results of the new Maya exercise:

This was not a reason to restart the whole page. It was a reason to repair the weak panels.

A narrow repair pass works best when it preserves the strong panels and only restores the broken identity anchors.

Repair prompt

Use a targeted repair prompt:

Repair panels 4, 5, and 6 only.

Keep the approved layout, lighting, and story beats.

Character lock to restore:
- black chin-length bob haircut
- two small silver hair clips on the right side
- small bandage on left cheek
- teal courier jacket over cream hoodie
- compact backpack silhouette
- dark shorts over leggings
- yellow sneakers
- silver envelope must remain a sealed envelope

Do not change panel order. Do not add readable text. Do not redesign Nia.

The best repair prompt is narrow. It names what changed, what must return, and what should stay untouched.

When to repair instead of regenerate

Use repair when:

• the composition works but one or two anchors drifted
• the storytelling is clear and only identity needs correction
• later panels need to match earlier approved panels

Regenerate only when the page fails at the layout, storytelling, or overall style level.

Keep the same OC recognizable in different poses

Maya provides a second example for applying this checklist to an OC you already own. Her approved sheet uses an adult face, short auburn bob, teal rain jacket, mustard scarf, dark jeans, brown boots, and compact olive backpack. The reference-sheet guide explains how to document those details before making a sequence.

The important distinction is between identity, the selected costume, and the requested pose. A new pose can be wrong while the character remains recognizable. An approved costume change can be correct even though its colors differ from the original. Review those questions separately.

What changed and what stayed fixed

For five tasks, the teal jacket remained fixed. In the sixth task, we explicitly requested a navy jacket of the same general cut. Hair, scarf, apparent adult age, jeans, boots, and backpack remained part of the brief.

This is a useful small test for a consistent OC: change one condition at a time and decide what is allowed before inspecting the output. Otherwise, you can accidentally reject a requested costume change or accept an unrequested identity change.

The twelve retained outputs

The exercise used LlamaGen.AI's image playground API with Vertex Nano Banana 2.1. Every request received the same reference-sheet URL and a stable character description, plus one task instruction. There were two initial attempts for each task. The requested seeds were retained in the run records; we do not claim that a supported seed makes future generations deterministic.

These are actual outputs from the image-API exercise. Every initial result is retained, including the views we wanted to refine. They are not a screenshot of OC Maker or a test of its saved-character system.

Across these twelve images, the short auburn hair and mustard scarf remained visible, and the jacket followed the requested color: ten teal outputs and two navy outputs. That is a narrow observation about these samples. We did not compute a face-match score, and the back-view pair was not scored for full-face identity. A hidden backpack detail or cropped boot is not automatically a pass.

For the side-profile pair, the second result prompted an editorial request for a stricter side-facing torso. The second navy outfit image also turned away more than we wanted for a front-facing comparison, but the prompt had not explicitly required a front three-quarter view. We therefore do not count that preference as an objective generation failure. This is why a pass/fail checklist needs specific instructions, not just a general feeling that the image is off.

The original files are available here so you can make your own comparison:

Revise the pose without redefining the person

We requested one additional side-profile image using the prior output and the approved reference. The correction specified that the head, shoulders, hips, knees, and boots should all point to the right. It kept the character description stable.

Make the full body a strict side profile facing right.
Preserve the adult face, short auburn bob, teal jacket, mustard scarf,
dark jeans, brown boots, compact olive backpack, and illustrated style.
Show one character on a simple background.

The right image is a real additional API generation, available as the revision original. The comparison illustrates a requested pose refinement. It is not a masked edit, so it does not establish that every unrelated pixel remained unchanged.

Review the complete revised image. The backpack, hand, coat pockets, framing, and face can all change along with the pose. Keep the earlier version until you approve the replacement. A successful revision is a new selected version, not proof that later generations will always match it.

Save the result and its limits

Keep the reference version, task prompt, output, and review note together. Record which changes were intentional and which details were not visible enough to judge. Preserve both initial attempts rather than showing only a chosen winner.

The retained receipts include prediction IDs, model/provider fields, requested inputs, image dimensions, hashes, and client elapsed times. Studio credit charges and settled monetary costs were not measured. This exercise does not establish a universal consistency rate or the behavior of a native comic-project redraw.

Once a selected version is ready, use it in the six-panel OC workflow. Continue the same checks across the actual panels; a collection of consistent portraits does not yet prove that the story reads clearly.

The checklist before publishing

Use this before exporting:

What to include in an artist brief

This same checklist also helps when hiring a human artist.

Creators usually get better results when the brief separates story intent from visual identity.

FAQ

Can AI keep comic characters perfectly consistent?

Not perfectly in every case. Consistency improves when you use a stable character lock file, a reference sheet, and targeted repair prompts. Treat the first image as production input, not as magic.

Should I describe personality or visual details first?

Use both, but visual details matter more for panel continuity. "Brave and shy" helps performance. Hair, face, outfit, silhouette, and props help recognition.

How many character anchors should I use?

Use 5 to 8 identity anchors. Too few causes drift. Too many can make prompts brittle. Face, hair, outfit, silhouette, and one signature prop are usually enough to start.

Where should I start?

Start with LlamaGen.AI OC Maker, approve the character reference, and use the six-panel OC tutorial when the cast is ready for a sequence.

Final workflow

For a beginner comic creator, a practical consistency workflow is:

premise -> character lock file -> reference sheet -> six-panel plan -> generated page -> consistency score -> targeted repair -> export

That is slower than typing one prompt. It is also how you reduce the chance that your main character becomes a different person halfway through the page.

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