Isn’t GPT-4o (the multimodal model currently offered by OpenAI) supposed to be able to do things like this?
Don’t get me wrong, I think you would be better served by taking this as a fun exercise to develop your imagination and writing skills. But since it’s fanfic and presumably for personal, non-commercial purposes I would consider what you want to do to be a fair and generally ethical use of the free version of ChatGPT…
please use Bing Copilot instead of ChatGPT for this. it’s the same language model underneath, largely, but the distinction of backing replies with actual sources and citing those sources in a way that allows you to click through and check the information you’re getting is huge for a variety of important reasons.