Yuki · yuki-ai.com
Step into a story you can take part in
Yuki is an app for creating and playing interactive story Worlds. Choose a World and take part through dialogue or actions, or create your own Worlds, Characters, and Chapters.
Choose the kind of story you want
Start here if you want to interact with Characters in your own words or create stories with Chapter progression. Each creator sets their World's Characters, opening, and progression. Read the introduction to find a World that interests you. A final Chapter can have a completion condition or remain open.
Read about Chapter progressionStart with dialogue or an action
Open a World and read its introduction, Characters, and opening. Type what you want to say or do in the message box. Responses use the creator's World, Character, and current Chapter configuration. Keep writing in your own words, or view AI inspiration suggestions beside the input.
Read the getting started guideCreate your own World on the website
Sign in and open the editor from Create in the navigation. Set the World introduction, add Characters, arrange Chapters, and choose publishing information and visibility. Edits save automatically as a draft; saving and publishing are separate actions. Resume a draft from My page → Worlds.
Read the website creation guideUnderstand generation charges
Sending messages, continuing, regenerating, generating after message edits, and creator playtest generation create usage. AI image generation and editing also create usage. Browsing existing content, editing World configuration, and uploading local images do not themselves incur AI generation charges. Charges depend on the model, reasoning effort, and actual processing volume. Check Usage & billing for records; amounts still being processed or reviewed may not be final.
Read about generation charges