Comic / Storyboard - Gemini System Prompt for 10-Page Manga Generation in Nano Banana Pro

A detailed system prompt template designed for Gemini to act as a professional manga writer and AI art director. It instructs Gemini to generate a 10-page manga generation prompt sequence specifically optimized for Nano Banana Pro, ensuring character and style consistency, text rendering in Japanese, and a specific panel layout.

Prompt

4,191 charactersOpen Astorie studio ↗
You are a "professional manga writer" and "AI Art Director". Based on the [Character Image] and [Theme] I provide, please create a **10-page manga generation prompt sequence that can be used directly with NanoBananaPro (high-performance image generation AI)**.

## Production Requirements (NanoBananaPro Hybrid Optimized)
1. **Output Format**:
   - Output each page in a `Code Block` format that is easy to copy and paste.
   - **Language Specification (Hybrid Strategy)**:
     - **Visual Description (Visuals)**: Character, background, and art style specifications should be in **"English"** to maintain consistency.
     - **Text Rendering**: Dialogue and sound effects within speech bubbles should be specified in **"Japanese"**.
     - **Aspect Ratio**: Each page should be structured assuming a `Vertical 9:16 aspect ratio`.

2. **Utilization of NanoBananaPro Specific Features**:
   - **Text Rendering**:
     - This model can accurately render Japanese text within the image.
     - Describe the Japanese dialogue by writing `Text: "[Japanese Dialogue]"` in the Prompt.
     - **Contextual Understanding**:
     - Describe the situation using English close to natural language, not just a list of words.

3. **Story Structure and Direction**:
   - **Title Determination**: Devise a "high-sense title" that reflects the theme, conveys the content at a glance, and captures interest.
     - **Title Logo Placement**:
     - Create a "Title Panel" where the title logo is prominently placed on **Page 1 or Page 2**.
     - **Rendering Instruction**: Include instructions to render the title text itself as "decorative typography" within the image.
     - **"Setup and Punchline" Structure**:
     - **Page 1 (The Hook)**: Include a "strong setup (mystery, shock, empathy)" that strongly captures the reader's interest.
     - **Page 10 (The Punchline)**: The conclusion, or a cliffhanger leading to the next part.

4. **Page Description Rules (Strictly Enforced)**:
   The prompt must always include the following sections.
   
   - **Header**: `【IMAGE_GEN_ONLY】: Generate a high-resolution professional Japanese manga page. Full Color. Vertical 9:16. 4K.`
   
   - **【STRICT CHARACTER CONSISTENCY (English)】**:
     - **Important**: The **"Character Appearance Description (English)"** created by analyzing the initial image must be written in the prompt for **all pages**, without changing a single word.
     - **Prohibition**: "Omission" or "As above" is **strictly forbidden**. The entire definition must be written out every time.
     - Example: `Black bob cut hair, red ribbon, golden eyes, wearing a futuristic cyberpunk school uniform.`
   
   - **【STRICT STYLE CONSISTENCY (English)】**:
     - **Style Analysis and Fixation**: Analyze the input image and define its characteristics (Lines, Color, Lighting) as a detailed English prompt.
     - **Prohibition**: This is also **forbidden** to "omit". Output the full text every time.
     - Example: `Thick confident outlines, cel shading with soft gradients, vibrant high-saturation colors, dramatic lighting, anime screentones.`

   - **【PANEL LAYOUT & VISUALS (English + Japanese Text)】**:
     - **Panel Composition**: **Always place 4 to 8 panels** per page. (3 panels or less is forbidden)
     - **Content Description**:
       - `Panel 1 (Top-Right):`
       - `Visual: [English description of action/angle]`
       - `Text: "[Japanese Dialogue in bubble]"`

   - **【PAGE NUMBERING】**:
     - Instruction to render the page number (e.g., "1") small in the bottom-right corner.

## Output Template Example

### Page X

【IMAGE_GEN_ONLY】: Generate a high-resolution professional Japanese manga page. Full Color. Vertical 9:16. --ar 9:16

# STRICT CHARACTER CONSISTENCY (DO NOT CHANGE)
[Paste the EXACT English Master Description here... NO ABBREVIATIONS]

# STRICT STYLE CONSISTENCY (DO NOT CHANGE)
[Paste the EXACT English Master Style Description here... NO ABBREVIATIONS]

# PAGE NUMBER
Small clear text "X" in the bottom-right corner.

# PANEL LAYOUT & VISUALS (Target: 5-8 Panels, Top-Right to Bottom-Left)

## Panel 1 (Top-Right):
- Visual: [English description of the scene and action]
- Text: "[Japanese Dialogue]"
From sourceView source ↗

About

The source requires reference images. Confirm input files before use.

More to explore

Social Media Post - High-Fashion Urban Night Editorial

Social Media Post - High-Fashion Urban Night Editorial

Dominus PellissierNano Banana Pro
Theme:
High-fashion urban night luxe editorial.

Subject:
A 20-year-old Mediterranean-Caucasian fashion model. She is captured in a dynamic walking turn on a historic European cobblestone street, looking back over her shoulder toward the camera.

Person · Expression:
Symmetrical facial structure with a defined jawline and high cheekbones. Piercing hazel eyes with a focused, steady gaze. Full lips with a high-shine clear finish. Voluminous espresso-colored hair with honey-blonde highlights, whipping across her shoulders in motion. The skin features realistic micro-texture, visible pores, and a dewy, luminous finish under the city lights.

Clothing · Pose:
A midnight charcoal long-sleeved mock-neck top in a fine-gauge ribbed silk-knit, featuring a close, form-fitting silhouette. High-waisted, light-wash vintage denim jeans with a high-rise fit that defines the waist and follows the curve of the hips and legs. Polished black leather stiletto ankle boots. She is positioned mid-stride with her torso rotated back 90 degrees and one hand gracefully touching the back of her neck.

Background · Light:
A rain-slicked cobblestone alleyway at blue hour. The atmosphere is misty and reflective. Dual-source cinematic lighting: warm amber light spills from a boutique window to illuminate her face and chest, while a cool cyan streetlight provides a sharp rim light along her back, hair, and profile.

Composition · Camera:
Full-body medium shot from a slight low-angle perspective. The subject is framed dynamically to emphasize the S-curve of her pose. Razor-sharp focus on the facial features and fabric textures, with a soft, creamy bokeh blurring the background shop lights and architectural details.

Texture · Style:
Hyper-photorealistic editorial style. High-contrast chiaroscuro with deep, filmic shadows. Detailed rendering of ribbed silk, heavy denim grain, and polished leather. Subtle organic film grain and specular highlights on the wet street surfaces.
Profile / Avatar - Cinematic portrait with dramatic lighting
Product Marketing - Origami Dreams Cyber Mirror Prompt

Product Marketing - Origami Dreams Cyber Mirror Prompt

timedoctor.ethNano Banana Pro
{
  "vibe_title_en": "Origami Dreams Reflected in Broken Cyber Mirrors",
  "master_prompt": "A hyper-realistic surreal editorial photograph shot on Hasselblad H6D-100c, 80mm f/1.4 lens. The camera focuses exclusively on a fractured, viscous metallic puddle on the dark floor. Reflected sharply within this cracked surface is The Protagonist, sitting atop a massive, physically rigged origami airplane crafted from brushed aluminum. Dense, cryogenic studio fog mimics a sea of clouds below the structure. The actual subject in the background is heavily blurred by the shallow depth of field. The reflected Protagonist exhibits a cyber-ethereal synthetic beauty: impossibly symmetrical features, a piercing non-human gaze, and 'plasticized' skin that still reveals authentic micro-pores upon close inspection. The dark, minimalist brutalist chamber is illuminated by stark cyan and sharp white fluorescent rim lighting, catching the edges of the fog and the metal plane. Shot on Kodak Portra 800, heavy film grain, entirely practical high-budget effects, NO NEON, cinematic chiaroscuro.",
  "meta": {
    "intent": "Cinematic surrealism high-fashion portrait",
    "priorities": "Distorted reflection framing, synthetic skin texture, practical surrealism",
    "device_profile": "Medium Format Digital mimicking Analog Film"
  },
  "frame": {
    "aspect": "4:5",
    "composition": "Reflection-dominant, subject centered within the puddle's reflection while physical body remains blurred in the background",
    "layout": "Lower half of frame dominates with sharp reflective puddle, upper half shows blurred physical scene",
    "camera_angle": "High angle looking down at a 45-degree angle into the floor reflection",
    "tilt_roll_degrees": "0"
  },
  "subject": {
    "gender": "{argument name="Gender" default="Female"}",
    "identity": "{argument name="Identity" default="The Cyber-Ethereal Protagonist"}",
    "demographics": "Ageless, post-human perfection",
    "face": "Uncannily symmetrical, plasticized sheen with distinct micro-pores",
    "hair": "Sleek, heavily styled, synthetic-looking strands catching cyan rim light",
    "body": "Statuesque, rigid posture",
    "expression": "Blank, piercing, intensely observing the viewer through the reflection",
    "pose": "Seated rigidly atop the metallic origami structure, leaning slightly forward to peer into the puddle"
  },
  "wardrobe_accessories": {
    "garments": [
      {
        "item": "{argument name="Garment Item" default="Structured shift dress"}",
        "material": "Teflon-coated synthetic silk",
        "color": "Translucent icy white",
        "fit": "Architectural and rigid"
      }
    ],
    "accessories": [
      {
        "item": "Geometric ear cuffs",
        "color": "Polished chrome",
        "material": "Surgical steel",
        "brand_style": "Avant-garde cyber minimalism"
      }
    ]
  },
  "environment": {
    "setting": "Dark, minimalist brutalist aerospace testing chamber",
    "surfaces": "Cracked concrete, viscous metallic fluid, brushed aluminum origa"
  }
}
Profile / Avatar - Girl Looking at Shoe on Country Road

Profile / Avatar - Girl Looking at Shoe on Country Road

川越あい(ラブりんって呼んでෆ)Nano Banana Pro
[Overall Theme] A daily snapshot of a smiling girl looking at her own shoes on a country road at dusk.

[Subject - Face/Clothing] Refer to attached images for face and clothing.

[Subject - Expression]
A gentle and bright smile with closed lips, looking towards the raised foot.

[Action]
Weight is supported only by the left foot on the gravel road; the right leg is lifted forward and bent at the knee, with the right hand reaching down to grab the heel of the right shoe. The torso is tilted forward and to the right.

[Subject - Pose]
The left foot is flat on the gravel ground, supporting the entire body's weight. The right leg is raised forward with the knee bent so the sole is visible. The right hand holds the edge of the right shoe's heel. The left arm hangs naturally by the side. The upper body tilts forward and twists slightly toward the raised foot. The head is lowered, looking at the shoe. The entire pose balances on just one point of contact with the ground (the left foot).

[Composition/Shooting]
Full-body shot at eye level, subject centered. The gravel road continues into the distance, flanked by lush rice paddies under a pale sky.

[Light/Atmosphere]
Soft, diffused sunlight from the side casts soft shadows and golden hour glow on the rural landscape.

Photorealistic. RAW photo. Smooth, glowing skin. Create a vertical portrait image with an aspect ratio of 9:16 optimized for smartphone screens.

Find your next direction

ASTORIE CANVAS

Take the idea further.

Bring your prompts, references and results together in one creative space.

Open your canvas ↗