Webtoons are now one of the most-read comic formats in the world. Solo Leveling became a global phenomenon. True Beauty has over 5 billion reads. Tower of God ran for fifteen years. The visual style behind all of them — full color, vertical scroll, bright Korean art aesthetics — is something you can now generate with free AI tools, for your own story ideas.
This guide gives you the complete workflow for making webtoon and manhwa-style comics with AI, including the character consistency technique for free tools and copy-paste prompt sequences for the three most popular manhwa aesthetics: action (Solo Leveling style), romance, and dark fantasy.
What Makes Manhwa/Webtoon Art Distinct
Before writing prompts, it helps to understand what visually separates manhwa from Japanese manga — because the AI prompt differences are significant.
| Japanese Manga | Korean Manhwa / Webtoon | |
|---|---|---|
| Color | Traditionally black and white | Full color throughout |
| Format | Horizontal pages, right-to-left reading | Vertical scroll, top-to-bottom |
| Backgrounds | Often sparse/screentone | Detailed, painted, photorealistic in action series |
| Character eyes | Very large, highly stylized | Large but slightly more naturalistic; heavy lash detail |
| Skin rendering | Flat or minimal shading | Smooth gradient shading, bright clean skin tones |
| Color palette | Not applicable (B&W) | High saturation; vibrant; dramatic lighting |
| Panel layout | Fixed page grid | Flexible — wide cinematic panels mixed with close-ups |
The single most impactful thing you can do in a manhwa prompt: name a specific webtoon as your style reference. "manhwa art style similar to Solo Leveling" produces dramatically more accurate results than "Korean comic style." The AI has extensive training data on popular webtoons.
The Manhwa Character Types
Different webtoon genres have distinct character design languages. Know which one you're targeting before writing your character sheet prompt.
Action manhwa (Solo Leveling, Tower of God, The God of High School):
- Sharp jawlines, tall builds, intense or cold expressions
- Dark color schemes with vivid accent colors (electric blue, blood red, shadow black)
- Dramatic backlighting, glowing power auras
- Often has a "awakened/transformed" mode with different eyes/hair
Romance manhwa (True Beauty, Cheese in the Trap, My ID is Gangnam Beauty):
- Soft rounded features, large expressive eyes, flushed cheeks
- Pastel and warm color palettes
- Detailed casual and school fashion (very specific outfit styling)
- Emotional close-ups and reaction panels are the dominant panel type
Dark fantasy manhwa (Eleceed, Noblesse, The Breaker):
- Mix of action builds with fantasy/supernatural elements
- Rich, saturated environments — stone citadels, shadowed forests, glowing portals
- Characters may have non-human features (elf ears, elemental markings, grey skin)
- Dramatic contrast between light and shadow
Step 1 — Generate Your Manhwa Character Sheet
Use this prompt in ChatGPT, Gemini, or Microsoft Copilot:
Generate a manhwa character design reference sheet.
Character: [boy], age [20].
Personality: [stoic, powerful, guarded]
Visual style: Korean manhwa / webtoon art style, full color. Similar art style to
[Solo Leveling].
Layout: Single figure, completely clean white background. Full body, head to toe.
Neutral front-facing pose, arms slightly away from body.
Physical details:
- Face: Large, detailed eyes with [dark grey] irises and prominent lash detail. Slightly
more naturalistic proportions than Japanese anime — not hyper-chibi, not realistic.
[Sharp] jawline. [Tall and athletic] build.
- Hair: [silver-white, long and straight with no bangs — falls just past the jaw]
- Skin: [fair and pale]. Clean manhwa-style gradient shading — bright highlights,
soft shadow.
Outfit:
[Black tactical gear — fitted jacket with silver zipper detail at the collar, dark
cargo pants with a side strap, heavy black boots with silver buckles]
Distinctive detail: [A jagged scar running through the right eyebrow]
Reference: Manhwa art quality. Full color. Clean linework. High saturation.
No background, no labels, no speech bubbles, no text anywhere.
Here is what the above prompt produces — the manhwa character used throughout this guide:
Save this image — it is your anchor for all panel generation in this project.
Step 2 — Vertical Panel Format for Webtoon
Webtoons are read on phones, scrolling top to bottom. When prompting for webtoon layouts, always specify vertical orientation:
Panel orientation: Tall vertical rectangle, portrait format, approximately 2:3 or 9:16
aspect ratio (phone screen proportions). The panel is taller than it is wide.
For a multi-panel webtoon episode strip:
Layout: [4] panels arranged vertically in a single column, stacked top to bottom.
Each panel is a wide horizontal band (full width of the strip, moderate height). Thin
white or black gutters between panels. The overall image is very tall and narrow —
optimized for vertical mobile reading.
Prompt Sequence 1: Solo Leveling-Style Action Chapter
Run these in order, in the same chat session. Upload your character sheet first.
Action Prompt A — 4-Panel Power Awakening Strip
Here is the result — a Solo Leveling-style power awakening sequence with electric blue aura and empty monologue boxes:
Using the character from the reference image I have attached, generate a 4-panel
vertical webtoon strip in a manhwa action style similar to Solo Leveling.
Story — a power awakening sequence:
Panel 1 — The character kneels on the ground, badly beaten, head down. Rubble and
smoke around them. The environment is dark and grim. Their expression is hidden.
Panel 2 — Close-up of the character's eye, opening slowly. Inside the iris, something
shifts — a glow begins to form. The pupil changes color: from [dark grey] to
[electric blue].
Panel 3 — The character rises, silhouetted against an explosion of dark energy or shadow
aura expanding outward from their body. Dramatic backlighting. The aura should feel
massive, filling the panel with darkness and light contrast. Expression not fully visible.
Panel 4 — The character faces forward, standing tall. Their aura has settled around
them. Expression: cold, resolved, almost frightening. This is the awakened version of
the character — same outfit but possibly slightly disheveled from battle. Eyes clearly
show the new [electric blue] glow.
Layout: 4 panels stacked vertically. Each panel is a wide landscape-format horizontal
band. Narrow black gutters between panels. Portrait strip orientation overall.
Character: Use the attached reference image. Hair, face shape, and distinctive features
consistent. In panels 3 and 4 — the character may look more intense/changed but must
still be recognizably the same person.
Speech bubbles:
- Panel 1: One small empty rectangular inner-monologue box in the upper corner.
Completely blank inside — no text.
- Panel 4: One empty rectangular inner-monologue box. Completely blank inside.
No oval speech bubbles in this strip (this is a silent, atmospheric sequence).
Art style: Korean manhwa action aesthetic — Solo Leveling visual register. Full color.
High contrast. Deep shadows. Electric accent color for the power aura ([electric blue]).
Photorealistic-quality background in panels 1 and 4. Painterly lighting.
No text, captions, sound effects, panel numbers, or watermarks anywhere.
All bubble/box interiors must be pure white.
Action Prompt B — 6-Panel Battle Chapter Page
Here is the result — a full dungeon boss confrontation page in Solo Leveling style:
Upload character sheet, then:
Using the character from the reference image I have attached, generate a 6-panel
webtoon action page in Solo Leveling / manhwa action style.
Story — a dungeon boss confrontation:
Panel 1 — Establishing wide panel (full width): A massive underground dungeon chamber.
The character stands small in the foreground, back to viewer. In the far distance, an
enormous shadowy monster/boss — glowing eyes far above, dwarfing the character in scale.
Panel 2 — Character medium shot: The character in a ready stance, one hand forward, eyes
locked on the target. Expression: calm and focused. The shadow aura from their body
begins to rise slightly.
Panel 3 — Monster detail: A close-up of the monster's face or weapon — enormous,
terrifying, descending toward the character.
Panel 4 — Dodge panel: The character has vanished from their original position — only
a blur trail remains. They reappear mid-air behind/above the monster, arm drawn back.
Dynamic speed lines, motion blur.
Panel 5 — Strike: Full impact. The character's attack connects with the monster — massive
explosion of energy, debris, light. Both figures partially lost in the blast.
Panel 6 — Aftermath wide panel (full width): The monster is collapsed. The dungeon
chamber is wrecked. The character stands in the rubble, the glowing aura fading.
Shafts of light cut through dust from above. Expression: quiet, breathing hard.
Layout:
Row 1: Panel 1 — full-width horizontal band (wide establishing panel)
Row 2: Panel 2 and Panel 3 — two equal panels side by side
Row 3: Panel 4 and Panel 5 — two equal panels side by side
Row 4: Panel 6 — full-width horizontal band (wide resolution panel)
Thin black gutters between all panels.
Character: Use the attached reference. Consistent face, hair, and outfit in panels 1, 2,
4, 5, 6. Panel 3 focuses on the monster — character not featured.
Speech bubbles:
- Panel 2: Empty rectangular monologue box, upper corner, blank white inside.
- Panel 5: Empty jagged burst shape (action shout style) — blank white inside, no text.
- Panel 6: Empty rectangular monologue box, blank white inside.
All interiors pure white. No other text anywhere.
Art style: Korean manhwa action — Solo Leveling quality. Full color. Photorealistic
painterly backgrounds in panels 1 and 6. High contrast, dramatic lighting, deep shadow.
Character cel-shaded against detailed backgrounds. Intense saturated accent color for
power effects.
No text, captions, sound effects, labels, or watermarks anywhere in the image.
Prompt Sequence 2: Romance Manhwa Strip
For True Beauty, Cheese in the Trap, or K-drama adjacent aesthetics.
Romance Prompt A — 4-Panel Awkward Encounter
Upload character sheet, then:
Using the character from the reference image I have attached, generate a 4-panel vertical
webtoon romance strip in Korean manhwa style similar to True Beauty or My ID is Gangnam
Beauty.
Story — an awkward first encounter:
Panel 1 — Our character is walking through a school hallway, looking at their phone,
relaxed and unaware. The hallway is bright, lockers visible, other blurred students
in background.
Panel 2 — Our character walks directly into another person — a tall, handsome second
character ([dark brown hair, sharp features, navy school uniform]). Books and papers fly
everywhere. Both look surprised.
Panel 3 — Close-up: Our character's face — cheeks flushed bright pink, eyes wide in
embarrassment. They are clearly flustered. The other person's hand is extended toward
them to help.
Panel 4 — Wide shot: Our character is walking away quickly, arms stiff at their sides,
steam lines rising from their flushed face. The other person watches them leave, slightly
amused.
Layout: 4 panels in a vertical column, stacked top to bottom. Each panel a horizontal
band. Thin light grey gutters. Soft overall framing.
Character: Use the attached reference. Consistent hair, face, school outfit. In panel 3,
show flush on cheeks as bright pink/red shading on skin.
Speech bubbles:
- Panel 2: Two small oval speech bubbles — one from each character. Both completely blank
white inside. No text.
- Panel 4: One small oval speech bubble from our character. Blank white inside.
All interiors pure white.
Art style: Korean manhwa romance aesthetic — True Beauty visual register. Full color.
Warm, soft color palette: cream backgrounds, pastel pinks and soft yellows, warm skin
tones. Clean bright skin rendering with subtle flush shading. Soft rounded linework (not
harsh manga lines). Detailed school environment backgrounds. Characters pop against
softer backgrounds.
No text, captions, sound effects, panel numbers, or watermarks anywhere.
Romance Prompt B — 6-Panel Rooftop Scene
Upload character sheet, then:
Using the character from the reference image I have attached, generate a 6-panel vertical
webtoon romance page, manhwa style similar to True Beauty or Cheese in the Trap.
Story — rooftop conversation at sunset:
Panel 1 — Establishing: A school rooftop at golden hour. The city stretches beyond the
fence. Our character sits on a low wall, knees pulled up. Warm orange and pink sky.
Panel 2 — A second character ([dark brown hair, calm expression, white casual hoodie
and dark jeans]) sits beside them — not touching, but close. Both look at the sunset,
not at each other.
Panel 3 — Close-up of our character's face in three-quarter profile. Expression: soft,
bittersweet, something unsaid. Golden light on their features.
Panel 4 — The second character turns to look at our character — catching them off guard.
Their expression: gentle, earnest.
Panel 5 — Our character turns — they meet each other's eyes. Both surprised by the
moment. A held breath.
Panel 6 — Wide pull-back: The two figures silhouetted against the blazing sunset sky.
Small against the orange-pink horizon. Neither has moved.
Layout: 6 panels stacked vertically. Row arrangement:
Row 1: Panel 1 — full-width horizontal band (wide scene setter)
Row 2: Panel 2 — full-width (two characters, wide two-shot)
Row 3: Panel 3 and Panel 4 — two equal panels side by side (facing reaction close-ups)
Row 4: Panel 5 — full-width (the moment)
Row 5: Panel 6 — full-width (the pull-back)
Thin light gutters.
Character: Use the attached reference. Consistent in panels 1, 2, 3, 5, 6.
Speech bubbles:
- Panel 3: One small cloud-shaped thought bubble from our character. Completely blank
white inside — no text.
- Panel 5: One small oval speech bubble from the second character. Completely blank
white inside — no text.
All bubble interiors pure white.
Art style: Korean manhwa romance — warm, cinematic. Full color. Golden-hour palette:
amber, coral, dusty rose, warm shadow. Clean smooth skin with sunset rim lighting.
Soft expressive linework. Detailed painted backgrounds contrasting with clear characters.
No text, captions, labels, sound effects, or watermarks anywhere.
Prompt Sequence 3: Dark Fantasy Manhwa
For Tower of God, Eleceed, Noblesse, or original dark fantasy world-building.
Dark Fantasy Prompt — 4-Panel Ritual/Summoning Scene
Upload character sheet, then:
Using the character from the reference image I have attached, generate a 4-panel vertical
webtoon strip in a Korean dark fantasy manhwa style similar to Tower of God or Eleceed.
Story — a forbidden summoning:
Panel 1 — The character stands in a massive ancient stone chamber. On the floor: an
elaborate glowing summoning circle of light — geometric and intricate. The character
stands at its center, arms raised. Dark atmosphere, cold torchlight from the walls.
Panel 2 — Close-up: The character's hands, open upward. The summoning light rises from
their palms — ethereal, cool-toned energy (deep blue-violet or silver-gold depending
on your character's power type).
Panel 3 — Something responds: A vast darkness begins to form at the far end of the
chamber — towering, humanoid but too large, made of shadow and distant stars. Not fully
visible. Our character looks up at it — small in comparison.
Panel 4 — Wide shot: The summoning is complete. The entity stands in the chamber. Our
character stands before it. The light from the summoning circle is the only warm light
in the scene.
Layout: 4 panels in a vertical column. Each a horizontal band. Narrow dark gutters.
Character: Use attached reference. Consistent across all 4 panels. In panels 1 and 4,
character appears small relative to the space — this is intentional for scale.
Speech bubbles:
- Panel 1: One empty rectangular monologue box in upper corner. Blank white inside.
- Panel 4: One empty rectangular monologue box. Blank white inside.
All interiors pure white.
Art style: Korean dark fantasy manhwa. Full color but rich and dark — deep navy, shadow
black, cold stone grey as base palette with [deep violet] for magical effects. Highly
detailed architectural backgrounds. Characters sharp and clear against detailed
environments. Dramatic top lighting from summoning circle glow.
No text, captions, labels, sound effects, or watermarks anywhere.
Character Consistency Tips for Webtoon Projects
Write skin tone explicitly. Manhwa skin rendering is a defining visual element — skin tones vary widely and AI defaults to assumptions. Always write: "skin tone: [fair and pale]" — or swap to your character's actual tone ([warm medium], [warm deep brown], [olive]) — in every prompt.
Name your style reference and keep it identical. The phrase "manhwa art style, True Beauty aesthetic" should be copied verbatim into every single panel prompt. One word change (e.g. swapping "True Beauty" for "K-drama style") causes visual drift.
Include the power accent color in every action prompt. If your character's power is electric blue, write "electric blue accent color for power effects" in every action panel. Consistency of the power color is what makes action sequences feel like a series.
Session continuity is critical for longer projects. Generate all panels for one episode in a single chat session. Before starting a new session for a new episode, re-upload your character sheet and describe the character in text.
Free Tool Comparison for Manhwa
| Tool | Cost | Manhwa Strengths | Notes |
|---|---|---|---|
| Google Gemini | Free | Best full-color output; handles bright skin tones and high saturation well; good at multi-panel vertical layouts | First choice for manhwa/webtoon work |
| Microsoft Copilot | Free (no account) | High saturation, clean characters; good for romance manhwa palette | No daily limit; try for quick iterations |
| ChatGPT free | Free (daily limit) | Precise instruction-following; best for complex multi-panel layouts | Limited daily generations on free tier |
| Adobe Firefly | Free (25 credits/mo) | Clean rendering, good anatomy | Credits run out quickly for episode work |
Assembling Your Webtoon Episode in Canva (Free)
- Open canva.com — free account
- Create new design → Custom size: 800 × 4800 px (tall vertical strip for a 6-panel episode)
- Upload each generated panel image
- Stack panels top to bottom, full width, thin gutters between (use Canva's alignment guides)
- Add dialogue using the Text tool directly over blank speech bubbles
- Font recommendations: Noto Sans KR (clean modern feel, free in Canva), Roboto (dialogue), Bangers (action shouts)
- Export as PNG for sharing, PDF for archiving
For a full episode (20–30 panels), create multiple 800 × 4800 px canvases and combine them or use a longer canvas at 800 × 12000 px.
Power User Upgrade: Midjourney --niji 6
For polished, production-quality manhwa output, Midjourney v7 with the Niji model is the paid upgrade path:
[your panel prompt], manhwa style, Korean webtoon aesthetic --niji 6 --cref [paste the URL of your character sheet image here] --cw 100
--niji 6 is Midjourney's anime/manhwa-optimized model. --cref locks the character across generations. The results are consistently high quality — closer to professional webtoon artist output than free tools currently achieve.
Cost: $10/month (Basic plan). For a serious serialized webtoon project, this is worth it. For experimenting with the format and developing your story, the free tools above are more than sufficient.
Related Resources
- AI Anime Comic Strip Prompts — The companion guide to this one: the same consistent-character technique applied to Japanese manga panel formats (yonkoma and 6-panel action page), with detailed empty speech bubble prompts
- ChatGPT Anime Art Prompts: Complete Guide — 40+ Japanese anime style templates covering shonen, shojo, mecha, Ghibli, and more
- Anime Art Styles Guide — Deep dive on visual style categories if you want to understand the aesthetic differences before you start prompting
Conclusion
The webtoon format is uniquely well-suited to AI generation because its strengths — full color, expressive characters against detailed backgrounds, vertical panel flow — are exactly what modern AI image tools do well. The free tools available today (Gemini, Copilot, ChatGPT) can produce individual panels that genuinely evoke the look of popular manhwa series when you name the right style reference and maintain character consistency through conversation threading.
The pipeline: character sheet → same session → reference uploaded per panel → Canva assembly → your dialogue in the empty bubbles. That's the complete workflow. Solo Leveling started with a story idea. So can yours.