Generating Siblings Based on a Reference Character AI Image Prompt

A prompt template for Nano Banana Pro designed to generate siblings (brothers/sisters) of a character based on a provided reference illustration. It allows specifying the number of siblings and their individual characteristics (e.g., 'funky sister', 'muscle-head brother').

Prompt

This is a Nano Banana Pro prompt for generating siblings of a character based on a reference illustration.

It works by simply specifying sister or brother within the prompt.
It is likely possible to specify mother or grandfather as well.

It allows specifying multiple people, not just one.
It also allows specifying individual characteristics.
The first image was output with the following:

One sister (funky), one sister (Jirai-kei), one brother (muscle-head), one sister (shut-in)

Sizes can also be customized, such as vertical, horizontal, or square, not just the original.

How to use this prompt

Copy the prompt above and paste it into an AI image generator such as Google Gemini (Nano Banana) or a similar tool. Replace any bracketed placeholders with your own details, then generate and refine the result.

This prompt is designed to work with a reference photo. Upload your own photo (only one you have the right to use) together with the prompt.

Prompt collection credit: YouMind Awesome Nano Banana Pro Prompts (CC BY 4.0). Credit to the original prompt creators. To request removal of a prompt or image, please contact us.