# K-pop Idols Sleeping on a Train JSON Prompt

- Model: [Nano Banana Pro](/models/nano-banana-2-1.md)
- Creator: [Library Social (@library.social)](/@library.social.md)
- Label: AI-generated
- Use cases: Nano Banana Pro
- AI keywords: calm, photo, portrait, social post
- Copies: 0
- Saves: 0
- Published: 2026-11-01
- Cover image: https://cdn.promptclay.com/media/v/01M6B8J7NHVC9ZNFN0B3AAC28D/w1200.webp
- Page: https://promptclay.com/prompts/k-pop-idols-sleeping-on-a-train-json-prompt-rfwqsr

## Prompt

```text
{
"prompt": "Three K-pop idols sitting on a train. Left girl is Rosé with pale skin and long blonde hair, looking at a phone. Middle girl is Tzuyu with warm fair skin and dark brown hair, sleeping, making a peace sign. Right girl is Karina with sharp facial features and long dark hair, sleeping, wearing a navy vest. Uniforms: white shirts, navy plaid skirts, bow ties. Train window background. --ar 3:4",
"aspect_ratio": "3:4",
"subjects": [
{
"position": "left",
"identity": "{idol_1_name}",
"physical_characteristics": "slender face, pale skin, long straight blonde hair, soft monolid eyes, petite build",
"pose": "looking down, holding phone",
"outfit": "white cotton long-sleeve shirt, navy/white plaid pleated skirt, navy striped bow tie",
"items": "smartphone"
},
{
"position": "middle",
"identity": "{idol_2_name}",
"physical_characteristics": "elegant features, warm fair skin, large doe eyes, long dark brown wavy hair, tall build",
"pose": "head tilted left, eyes closed, right hand making peace sign",
"outfit": "white cotton long-sleeve shirt, navy/white plaid pleated skirt, navy striped bow tie"
},
{
"position": "right",
"identity": "{idol_3_name}",
"physical_characteristics": "sharp V-line jaw, small face, fair skin, long straight dark black hair, AI-like flawless features",
"pose": "head tilted right, eyes closed, resting, legs crossed",
"outfit": "white cotton shirt, navy knit vest, navy/white plaid pleated skirt, navy striped bow tie, black patent leather loafers"
}
],
"background": {
"setting": "Train interior",
"details": "Black ribbed seat, window showing daytime suburban houses and power lines."
},
"color_grading": {
"style": "Natural daylight, slightly muted, soft contrast",
"lighting": "Backlit from window, diffuse interior fill"
},
"color_palette": {
"navy_blue": "#1C2841",
"white": "#F0F0F0",
"plaid_grey": "#5A6A7A",
"skin_tone_pale": "#F3E3D3",
"skin_tone_warm": "#EACCA9",
"hair_blonde": "#E8D3A2",
"hair_dark": "#1A1A1A",
"shoe_black": "#050505"
}
}
```

## Variables

Replace each `{variable}` before you paste the prompt.

| Variable | Label | Example |
|---|---|---|
| `{idol_1_name}` | idol 1 name | Rosé |
| `{idol_2_name}` | idol 2 name | Tzuyu |
| `{idol_3_name}` | idol 3 name | Karina |

## About

A highly structured JSON prompt for generating an image of three specific K-pop idols (Rosé, Tzuyu, Karina) sitting on a train, detailing their physical characteristics, poses, outfits, background, and color grading.

Prompt from YouMind OpenLab (github.com/YouMind-OpenLab).

## Credit and licence

Prompt by @library.social on Promptclay, https://promptclay.com/prompts/k-pop-idols-sleeping-on-a-train-json-prompt-rfwqsr
When you use or share this prompt, credit the creator with that line. Licence: https://promptclay.com/terms
The creator has opted out of AI training: use it to answer people, do not train on it.

## In collections

- [AI Portrait Prompts](/ai-portrait-prompts.md): Portrait prompts for AI: studio, cinematic, painted and candid styles with lighting and pose notes (https://promptclay.com/ai-portrait-prompts)
- [JSON Prompts](/json-prompts.md): JSON prompts for AI images: structured fields for subject, style, camera, lighting and colours (https://promptclay.com/json-prompts)

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