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511Black Cat Haru Daily Comic — a cool girl whose cat instincts keep giving her away
Add one line about your day: Haru, a quiet black cat girl, gets caught by her instincts around boxes, sunny spots and rustling bags, then pretends nothing happened — one episode of a webtoon series.
Fill in the fields
- 1Fill in the fields
- 2Copy the prompt
- 3Paste it into a GPT chat
- 4Send it as is and you get an image like the thumbnail example
- 5Attach a real photo that fits the card and it is used in the result: a background photo for background cards, a person or food photo for those cards Optional
Tested by us
- Test date
- 2026-11-02
- Tool
- ChatGPT image model (run in Codex) — same model as free ChatGPT, only limits differ
- Result
- Pass
- What worked
- Reading the 2x2 four panels from top-left, the sequence flows from buying a robot vacuum -> expecting automatic cleaning -> a twist with ears and tails up eyeing the vacuum -> ending with riding the vacuum saying "...Mine." All four panels maintain the same protagonist with black short hair, pink inner ears, yellow-green eyes, gray hoodie, and a red collar with a gold bell. The robot vacuum also consistently has a white circular body, a top circular protrusion, and a black front. The protagonist is calm while the sister is wide-eyed in utter surprise. It features bold outlines and soft pastel coloring, with no noticeable typos in the Korean dialogue, and the final line matches. Input field names and instructions do not appear in the image.
- What did not work
- None
- How to improve
- This time, it passed on the first try using the example values as-is. No fields or sentences were altered for testing. If the same result is needed, use the values from input.txt as-is first.

Full prompt 5,337 characters
Generate this image now. Draw it directly - do not describe it, explain it, or ask questions. Output size 1080x1350 pixels, 4:5 portrait, Instagram standard. Create exactly ONE finished English daily-life comic page as a single image, ready to post unchanged on Instagram or Threads. It must read like an episode of a popular webtoon series: one recurring heroine, a clear setup → build-up → twist → punchline, natural speech balloons, and expressive reactions. [Inputs (use the default when empty)] What happened today: "【What happened today】" Place: "【Place】" Partner: "【Partner】" Joke type: "【Joke type】" — default: Cat instinct exposed Panel layout: "【Panel layout】" — default: 4 panels (2×2) Final line: "【Final line】" — may be empty [The heroine — keep her exactly the same in every panel and every episode] Name Haru. A girl with chin-length glossy black bob hair, black cat ears with pale pink inner fur, a slim black cat tail that appears when her instincts take over, big round yellow-green golden eyes, a soft round face, an oversized light-gray hoodie with sleeves covering her hands, a red choker with a small gold bell, black shorts and white socks. Cute chibi-leaning proportions (about 3 heads tall), clean thick dark outlines, soft flat pastel coloring with gentle cel shading, sticker-like white edge glow around characters, clean readable backgrounds. Personality: outwardly calm, cool and quiet — she speaks little and keeps a straight, slightly sleepy face. But cat instincts keep escaping: boxes, sunny spots, rustling plastic bags, high shelves, laser dots, the sound of a can opening. When caught she pretends nothing happened with a dead-serious face. Her expression changes only a little; the PARTNER reacts big (sweat drops, white blank eyes, shock lines). That contrast is the signature of the series. [Story — build it from the inputs] Panel 1 (setup): show the concrete everyday situation and plant one prop. Panel 2 (build-up): a line or action raises an expectation. Panel 3 (twist): the expectation breaks — for "Cat instinct exposed" her cat instinct visibly takes over (ears up, tail out, pupils wide) while she tries to keep a straight face; for "Takes it differently" she takes one word or object in a different meaning; for "Cool comeback" she answers a scolding with calm, shameless logic; for "Imagination panel" draw her imagined scene inside a big thought bubble; for "Then vs now" contrast her past and present selves with two small captions. Panel 4 (punchline): one short line or look that pays off the prop — unexplained, never a lesson or recap. If the final line is empty, write your own short, dry punchline in her voice. Never print any input text as a line: "what happened" is only a premise, not dialogue, and no field name or instruction may appear in the image. Before drawing, silently write a 4-beat script whose last panel is a clear VISUAL payoff using the SAME object or event from today's premise plus at most one fresh dry line from her — never reuse a line from the tone references. Tone references (original examples of this series — do not reuse them, just match the quality): - Box: (1) Sister "Package is here~" Haru "Not interested." (2) Sister pulls out a gift "Ta-da! Got this for you" Haru "…Thanks." (3) The empty box rustles — Haru's ears perk up, tail whips out. (4) The gift lies on the floor; Haru sits inside the box, deadpan: "…This is my house." Sister: blank white eyes. - Sunny spot: (1) Sister "This is my seat." (2) Haru "Yeah, I know." (3) The sunlight shifts onto the sister's lap — Haru's eyes sparkle. (4) Haru curled up on her lap: "…I followed the sun. Not you." - Takes it differently: (1) Barista "Ready to order?" Haru "A latte." (2) Barista "Extra shot?" Haru "…Yes." (3) The pager buzzes — Haru's tail shoots up and she pounces on it with both hands. (4) Hugging the pager tight: "…Got it." Barista: blank white eyes. - Cool comeback: (1) Manager "Haru, why always the window seat?" (2) Haru "For work efficiency." (3) Manager "Then why do you move in the afternoon?" — Haru is pushing her chair after the sunlight. (4) Curled up in the sunny chair: "…The sun moved." Manager speechless. Dialogue order: balloons inside a panel read top→bottom, left→right in the order people speak; the partner reacts to what she does, and every line must make sense with what is drawn. Dialogue: 1–2 short balloons per panel, casual spoken English, every letter spelled correctly, tails pointing at the speaker. Tiny sound effects are welcome. No narration boxes unless the layout needs a time jump. [Layout] "4 panels (2×2)" = four equal panels in a 2-by-2 grid read left→right, top→bottom. "4 tall rows" = four wide panels stacked vertically. "6 panels" = 3 rows of 2. Thin black panel borders, white gutters. Keep important faces and text away from the outer 6% margin. [Rules] Original character and scene — do not imitate any existing artist, webtoon, VTuber or character. No logos or brand names. Return only the finished comic image. [Final output format] Output size 1080x1350 pixels, 4:5 portrait, Instagram standard. This selected output format takes priority over any fixed canvas size or aspect ratio elsewhere in this template. Adapt the composition, text zones and margins to the selected canvas without stretching or cropping essential content. Device safe areas apply only when a device is selected. Never print these format instructions on the image.
How did it turn out?
How to use it · FAQ
A cat-girl comic you can post every week
Haru, a quiet and cool black cat girl, gets caught by her cat instincts around boxes, sunny spots and rustling bags — and when caught, she keeps a straight face and pretends nothing happened. She is drawn with the same face and clothes every time, so several posts read like one continuing series. The calm heroine versus the shocked partner is the charm.
How to fill the fields
"What happened today" works best as one everyday line with a single object — "my sister bought a new robot vacuum" ends with Haru riding it: "…Mine." Pick one of five joke types; 4 panels (2×2) suits Instagram, 4 tall rows suits Threads and vertical feeds. Leave the final line empty and the AI writes one in Haru's voice.
Growing it into a series
Reuse the same place and partner for a few episodes so readers start wondering what Haru will do next, and rotate the joke types so it never gets stale.
More use cases
These images were made with the earlier cards. The copyable prompt above keeps this card’s default result. To try a variation, attach the example after generating and request the specific change.
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