AI Transparency Notice

• This service uses generative AI (OpenAI, and Google Gemini models when enabled) to analyse images you provide and draft descriptions and prompts, and to generate the images and text of Setting Books and the free first face (persona card, chapter text).
• For image generation, the character images you uploaded (or, if you started without images, the looks and answers you chose) and the canonical face you confirmed are sent to the AI provider. The same input can give a different result each time.
• Results are machine-generated suggestions and may be inaccurate. You review and confirm every field before use.
• Files and prompts exported from Yoruna carry metadata (the cpf_ref chunk, README) marking them as AI-assisted output, and Setting Book images and books are labelled as AI-generated in the colophon and file metadata.
• Your images are not used to train any model, by us or by our providers under their API terms.
• This notice is provided in accordance with the Korean AI Basic Act (인공지능 기본법) transparency obligations and applies to all languages of the site.